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  1. 23 points
    The story of how I and two fellow wheel riders became lost in the mountains and lived to ride another day. As I begin this, it must be said that I'm the one with poor judgement in this story. Well intentioned, but... The Cogswell Dam, as I've previously written about, is a gorgeous area to ride an EUC. It's basically a canyon ride on the northern side of a mountain ridge. I've ridden it twice before. Throughout this region are countless trails, large and small. One of the most well known is a four wheel drive capable trail called the Rincon Shortcut OHV Trail. It stretches along the southern side of the ridge that is shared with the Cogswell Dam. The Rincon trail-head starts about an 1/8 mile south of the Cogswell Dam trail-head. Up in the mountains there is a connection between the two, and that's what I've been itching to try. Complete the approximately 30 mile loop that joins the two trails. So I coordinated a group ride for Saturday morning, and my long time riding buddy @jrkline was the first to commit to the ride and not too long afterwards @Ando Melkonyan eagerly committed to the adventure (he had his newly acquired ACM). We were to leave by 9:30am, traversing the southern (Rincon) route first, taking advantage of the coolness of the morning air. Eventually we would meet up with the Cogswell Dam trail high up in the mountains and return by way of the shaded northern trail to avoid the extreme heat of the day. Oh, and today was the peak of a mini heat wave in Southern California, where the temperature was predicted to be in the low 90's. Maybe we should have brought more water. Hmmm. @abinder3 joined us at the very beginning. He didn't have time for the entire route (regardless of his reasons that was a good decision in hindsight) and therefore was just going to ride to the dam and back, about a 20 mile roundtrip. But it was nice that we could all meet at the beginning and share a few stories before we went our separate ways. In the picture above, from left to right: @abinder3 (Allen), @Ando Melkonyan, @jrkline (Jeff), and myself. Don't we look happy - if only we knew what was forthcoming I had my Monster which I had previously ridden here twice before. Jeff had the FrankenACM - I know, I know, his world famous 2040wh ACM. As would be demonstrated throughout the day, his ACM never fails. It may not be pretty but it's a faithful workhorse. And Ando brought his 3 week old ACM with a 2-1/2" tire that he managed to fit on the wheel. He had to cut away parts of the shell to make it fit, but he turned it into a really nice trail machine. We finally began our journal and after a few hundred feet wished Allen well as he exited for his trail head. We continued on the two lane highway until we came upon the locked trail gate, representing the entrance to our grand adventure. After bypassing the gate we began our journey in earnest. On a previous outing to Cogswell Dam I had ridden this part of the trail for a mile or so and was hoping the whole trail would be as I remembered. And for the most part it was, perhaps a little steeper in sections. But remember that this is a four wheel drive trail so certainly any path that a truck can take we can tackle easily on our EUCs. In this video you can see me struggling a bit as the ACMs zoom past me After a few miles of steady uphill climbing I was beginning to think that I should have taken my ACM too instead of the Monster. I've ridden my Monster a lot in the mountains now, but never for extended uphill pushes. We were on a trail that was to continuously climb for over 3500 feet. And this wasn't a paved road. It was gravel and sand mixed with large rocks and various ruts. So there was a lot of maneuvering involved, slips, slides, near stalls, and periodical jump-stops for the wheels. Although I have experience with the Monster and know that it's capable of ascending any hill that the ACM is, it does so extremely slowly and with much effort. As Jeff and Ando zoomed up the trail sections with hardly any physical effort, I was in a near constant crouch and heavy lean. Plus all of the effort required to steer the 70 pound Monster ... But I was hanging in there despite the ridicule coming from my fellow riders ;-) Fairly early on we had our first crash. I must say, anybody who wants to keep their wheel pristine should never do off-road trail riding. It's a messy business. My Monster requires a wide berth and although I always have my trusty helmet mirror, I have some rather large blind spots. Jeff was apparently unaware of these facts. As he was overtaking me on my left I was slowing sliding left. Our pedals locked and in the next moment we were both sprawled on the ground. Jeff's bloodied forearm and my bruised ego provided good entertainment for Ando :-) Here's a couple pictures of the aftermath: We continued the long climb, but I was getting tired. At one point Ando offered me his ACM while he pushed forward with the Monster. And then he proceeded to demonstrate a new technique (to me) for getting the Monster up hills fast. Jeff and I had great fun watching this and I think Ando was having fun to. It looked like he was riding a horse, but indeed it really moved fast. When I started riding the Monster again I used this technique and it really helped. But it was still hard on the body because of the lean, and steering was proving difficult. Eventually I discovered that if I was in a squatting position and squeezing the wheel between my knees, AND using my knees to force the wheel forward, the Monster really moved. This was exhausting however. We were still having a good time, enjoying each others crashes and Ando's music Somewhere near two hours we finally arrived near the peak. I was beat. Now we needed to find the trailhead that led back down to the Cogswell Dam. We came across a lone mountain bike rider that pointed us in the general direction that we needed to take to begin the descent to Cogswell Dam. In the following thumbnail you can see the Dam far below us. Here is where I made the fateful mistake of picking the wrong trail. It went down and looked to be in the general direction, so let's go for it. I really should have spent as long as I needed to be sure, but in the back of my mind I figured if it was wrong we'd probably realize it fairly soon and just backtrack. What I didn't take into consideration was my failing body :-( As we proceeded down this trail it slowly got sketchier and sketchier. First there were small dead falls (trees that fall across a trail) and then bigger and bigger ones where it took minutes to carry and or drag the wheel across. I was getting weaker. I had no more food and none of us had any more water. Remember that I said it was going to be in the 90's today. I felt like I was beginning to get symptoms of dehydration - shaky legs and arms and extreme fatigue. I could only ride 20 feet before I would loose control and had to stop and rest for a few minutes. By this time I had a few more rather severe falls which further hampered my ability to ride the wheel. Besides my difficulties, it had become clear that we were somewhat lost. This was certainly not the trail to the Cogswell Dam. I could simply not go further. At this point I was with Jeff. Ando had explored further along the trail and when he returned he said that he found water (we could hear a stream in the distance below). You don't know how excited I was to hear this. I felt that maybe if I got some water I may recover enough to continue at some level. Jeff took my empty water bottle and disappeared down the trail to return with water. I was feeling a bit mentally refreshed. While Jeff was away Ando and I tried to figure out exactly where we were. I had offline Google maps in my phone and a Garmin 60CS handheld navigator. BTW, GPS reception was not great within these mountains. But we eventually determined our exact location. Miles from the trail that we should have taken. I had arrived at a difficult decision. Like the sailboat captain in the middle of the ocean that grapples with the decision to press the emergency beacon, knowing that when he does so he will be rescued but his boat will be left behind, gone forever. But I knew that I could not continue back uphill to retrace our steps by a few miles and then down another 15 miles. Impossible. So I told Ando to leave me and get back to the area where we made the bad turn. In that area there was a line of site to the greater Los Angeles area and there was cell phone coverage. "Tell them that a person was suffering from exhaustion and dehydration. Call 911". Now by this point at least 15 minutes had passed and Jeff probably should have returned within 10 minutes since Ando knew the water was only 5 minutes away by wheel. But we continued to wait. While doing so Ando took my Monster and rode/carried it up the trail past a few of the sever dead-falls. And then walked back. Amazing, and as you'll learn in a bit, very important that he did so. Still no Jeff. Instead of sending Ando to look for Jeff I suggested that he go the other way, and I'll wait for him. So Ando disappeared with his ACM and I was alone in the middle of what felt like nowhere. I think it was about 3pm at this point. I lay on the ground and was anticipating a bottle of water with great joy. Maybe another fifteen minutes went by. Nothing. Then I started thinking, "Maybe something happened to Jeff. Was there an accident. Did his ACM break". I slowly started walking down the trail. 20 steps and then lay on the ground to recover. 20 steps, lay on the ground. I did this for maybe 15 minutes but realized that if he was hurt or the wheel was broken I was in no condition to help. And I had told Ando that if possible I would try and walk back to the trail junction at the top of the mountain. So I abandoned Jeff and ever so slowly started walking up hill. 20 steps, lay on the ground, ad nausea-um. I still had hopes that Jeff would return with water. I would have given away my Monster for water at that point. It really was horrible. At this incredibly slow pace I managed to get past the large dead-falls. I never would have been able to get my Monster past these obstacles in my condition. Eventually I found my Monster and could not believe how far Ando had taken it for me. I then proceeded to push it and myself up the trail, in spurts of low speed energy. A trolley handle may have helped, but just the effort of pushing the Monster and walking was too much. After maybe an hour I decided to abandon the Monster, knowing that I would never see it again. I wasn't worried about someone finding and taking it. First, nobody sane travels this impassible trail, and if someone did they wouldn't know what it was, and at 70 pounds I don't think they would try and carry it out. No, I would never see it again because I would never be able to get in here to recover it. That would entail hiking 15 - 20 miles which is a long hike on flat ground. I just didn't see myself being able to do that. I marked the location where I did leave it, in my Garmin 60CS thinking that I would post to Facebook and the Forum with the coordinates and anybody who thinks they could retrieve it could keep it. No bad feelings on my part. Anyway, it was load off my mind when I fully committed to never seeing it again. Let that be a strong reminder to what not to do in the future. I continued the painfully slow march. I was worried for my health because I know dehydration can be bad. But I tried not to exhaust myself too much. Walk for a few minutes and then lay down. Walk, lay down. Minutes turned to hours. I was thinking maybe if I eventually got to that magic "cell phone coverage" area that I could call 911 in case Ando wasn't able to. It's amazing what goes through your mind when you can't communicated with people who are trying to help you.What happened to Jeff? Did Ando make it out yet? Knowing where we had last all been together I was thinking positive and assuming that Jeff decided to explore that path beyond the river and went so far that he decided not to return with water. I knew that particular trail wound its way back up to the top of another mountain range to the 2 freeway which then led to civilization. So if he got out he would be able to call. But I had my doubts that we would have enough remaining power to climb another couple thousand feet and maybe 20 miles. I kept think that if I get rescued I'm going to have to tell them about Jeff so that they can search for him next. After maybe 3 hours I came across these maintenance trucks and construction equipment that we had passed on the way down. I opened every truck and door I could get into and FOUND WATER. Two old water bottles with maybe a 1/3 full of water each was an amazing find. First I sniffed it to be sure that they weren't storing fuel and then guzzled them down. Water had never tasted to good. Although it did not help with the exhaustion in my legs, it did help with the thirst and made me feel like I actually wasn't going to collapse somewhere up here in the mountains. I continued to walk, imagining what might be happening with Ando and Jeff. And then of course I was worrying about my wife because in the absolutely worst case I probably should have been home by now. But there was nothing I could do. She did know the general trails that we were taking (at least I got one thing right), but it would probably be very dark before she pulled the trigger and called 911. So I was still prepared for a very much longer day and night. Dusk was approaching when I started to hear a helicopter somewhere in the distance. That was the first mechanical sound I had heard for hours. I thought I heard a plane too. I did see the helicopter at one point but it was miles in the distance. Amazingly I had made it back to trail junction where we made the bad turn. And then I heard and saw a large search and rescue type helicopter hovering over me, but very high. I was in an area where there were power line towers (thus the maintenance equipment found earlier) plus I'm sure they generally stay far above the trees. I waived both my hands for a little bit and then it moved off to the distance a bit and hovered again. Then it left. "Well, that's it. I've been found and now help will be on the way". That was a huge psychological lift for me. So I continued to walk, and walk, and walk. It was now totally dark, after 8pm. Fortunately I had small pen flashlight so I could see the path in front of me. No longer fearing collapse from dehydration I could start contemplating coming across bears or mountain lions, both of which live in these mountains. What joy! I then spotted a brief flash of light followed shortly by a truck rounding the corner ahead. You can imagine what I thought at that sight. It eventually slowed to a stop beside me and I was asked my name (I guess they didn't want to pick up the wrong guy) and let me in the truck. There were four uniformed men in there, all volunteers for the Sierra Mountain Search and Rescue. They gave me all the water I wanted and bagged peanuts. Life was good. Shortly after I got in the crowded vehicle I asked if they happened to know about any other ..., and before I could complete the sentence they told me that all three people have now been accounted for. So Jeff was alive ;-) I assumed Ando was good because otherwise I probably wouldn't be sitting in the truck at the top of the mountain. Now get this, they then asked me, "do you want to go get your 'bike'?" Are you kidding me? I tried to suggest that I didn't want to put them through the trouble (I really didn't), but they insisted. They said that they were already up there so why not. It probably took another half an hour and a locked gate to get within a few hundred feet of where I left it. The last bit had to be walked since the trail conditions were too severe for the truck. So I actually got my Monster back. It felt like I just received a new wheel because in my mind I given it up for lost. As we drove down the mountain for the next 1-1/2 hours I learned that Jeff had been recovered on the 2 freeway, and Ando was the one that called it in. Eventually I met up with Jeff as we were brought together at the base of the mountain to be driven back to our vehicles (20 miles away). There Jeff told me how he amazing made it back up to the highway on the other side of the mountain range and then down towards town, almost on a zero battery charge. His 2040wh ACM truly has been an amazing wheel. I also learned from the rescuers that the helicopter had not seen me! Amazing. The guys said that in the future you should lay on the ground and move, otherwise all they see from above is a head, and that's hard to distinguise from everything else. So they found me based on what Ando was able to tell them. You can read some of what Jeff encountered here: And then when I finally got home around midnight (having left in the morning at 8am) I eventually read about Ando's experience which was amazing in itself. His ACM has also proven to be an amazing wheel. Essentially going 10 miles down mountain trails with almost no battery power remaining. You can read is account here: And here is the dam (it was not Cogswell after all) that Ando got to: And the 911 help that arrived after he made the call So there you have it. I think none of us will forget this ride. It's been four days and I'm still having difficulty riding, which really surprised me. When yesterday I hopped on my KS14C for a short utilitarian trip I almost crashed as the wheel was very wobbly. I had a hard time turning. It was then that I realized that my legs were still weak and uncoordinated. Amazing. Although I declared that I wouldn't do this again, time heals all wounds ;-) I know Jeff is up to doing it again, and maybe Ando will be to. We will be better prepared next time. More water, food, maps, only ACM's or the like, and a bigger breakfast. Oh, and Jeff says he'll bring his ham radio (which hopefully will not be needed). I hope you enjoyed my little adventure story
  2. 16 points
  3. 14 points
    My new Gotway Luffy received a facelift today! Since Luffy will soon be headed to a pediatric rehab center for study I figured she will be tossed around a great deal and suffer from irreparable trauma so my staff and I fabricated a plastic protective outer shell. First Luffy was encased in plaster using bandages that are traditionally used for stabilizing fractures. Once the plaster bandages hardened they formed a replica of Luffy's shell.. The plaster shell was then carefully removed from Luffy. This required using a cast saw and then slowing spreading the plaster bandage to dislodge Luffy. The plaster shell, called a negative mold, was then poured will plaster of Paris and a pipe mandrel was inserted in the center of the mold. The mandrel allows for the mold to be placed into a vise for modifications and also provides a conduit for our vacuum system to extract air (discussed later). Once the pored plaster hardened the negative mold was removed exposing the positive mold. The positive mold has tiny flaws which need to be smoothed and filled. Once this modification is complete a cotton stockenette membrane is placed over the positive mold. This allows for adequate vacuum pressure and even atmospheric compression during the plastic draping process. We used 3/32" copolymer plastic for my protective shell. It has flexible properties but is rigid enough to handle bump and spills. The copolymer sheet was heated in a large infrared oven to 350 degrees. Once the plastic sheet was at the proper temperature it was removed from the oven on a caster type table and then the colorful transfer paper was applied over the plastic.The paper has specialized inks that literally transfer into the hot plastic. In my pediatric practice we have over 50 colorful patterns kids can select from for their orthopedic braces. The table holding plastic sheet was then rolled over to the positive mold and with the assistance of 2 of my staff the plastic was carefully lifted and draped over the mold. A vacuum pump was then turned on and the plastic was completely sealed around the molded so there were no air leaks. The vacuum pump then withdrew any remaining air inside the mold allowing the atmospheric pressure to gently form the plastic around the mold. Once the plastic cooled it was cut from the mold and taken to the shop area where it was further trimmed and ground smooth. Once the shell was complete velcro straps and padding were added. There are much easier methods to protect your wheel from abuse but this was a fun project and should make the kids at the rehab center very happy!
  4. 14 points
    A quick spin on the new Rockwheel GT16 @captainwells just received his new GT16 and was gracious enough to allow me to ride it for 6-7 miles. Periodically we ride the Southern California beach together and as I was riding out to meet him he said that he got his Rockwheel GT16 (ordered in early March) and was wondering if I wanted to see it. "Are you kidding me" So I dropped my 1300wh ACM off at his house and took the GT16 for a nice long ride down the Strand and associated paths. He rode his KingSong 16S (which I got to also ride on the return leg). These are my initial observations. I, like many people, really like the looks of this wheel. It may not be as practical in less sunny climates as Southern California due to the very exposed wheel. But it has the cool factor going on. As previously observed, the slide out mud guard also rubs on this wheel, so it appears to be designed that way. If you slide it halfway in it no longer rubs. The pedals are not floppy (@Rehab1 will like this), but they are small. On the other hand during my 7 mile ride my feet felt comfortable. My feet feel less comfortable when riding 7 miles on my KS14C. They have a soft rubber layer (not coating) that was half attached on one of the pedals. Maybe that contributes to the comfort level. But I suspect they might be very slippery when wet. Again, no problemo in Southern California Also as mentioned elsewhere, the two rubber pads are not attached on the top. They flop away from the wheel easily. Very odd. We can't see what purpose leaving them not attached could be. But they are very comfortable on the legs. My only reference for this wheel is the ACM. The GT16 weighs substantially less and looks much smaller. Yet it is a 16 inch wheel and the tire is just as wide as the ACM. I did observe that the tire tread is much less aggressive than the ACM, which isn't particularly aggressive. Relating it to bicycles, the tire looks more like a road tire (smooth tread in the middle). The power button is under the handle and below the surface of the soft top plastic. So it's fully water proof. It's location is a good thing because like many other early wheels, it turns on and off instantly at the press of the button. So you wouldn't want to accidentally bump the switch while you were riding. Most other wheels require you to press and hold for a second or two before they turn on or off. Now the fun part, how does it ride? Fast, very fast. And extremely nibble. I have to say, I loved riding this wheel. It feels like it has all the oomph (that's a technical term) of the ACM, but since it's lighter, it feels like a faster accelerator. The ACM is a 'dense' wheel and sticks to the pavement, making it feel like a very stable wheel. The GT16 does not feel like a stable wheel, but in a very good way. It handles like a 14 inch wheel. But here's the thing, and I'm not sure why this should be, but it feels much smoother than a comparable nimble wheel. When I rode the KS16S on the return it also felt very nimble, but was noticeably less controllable than the GT16. It's very responsive (no pedal dipping). Those of you who don't like the relative softness of the Gotway wheels will love the GT16. I do. We rode to the end of the beach path where there's a very steep path to the upper parking lots. It's a good test. The GT16 flew up the hill. And since there's not a lot of history with this wheel I wasn't trying to really push it. But I was able to accelerate up the hill and it felt very perky in the process. Much perkier than the ACM. We'll have to take the GT16 into the mountains to really test it's raw power, but my impression is that it may out perform the ACM. Of course I have no idea whether it's prone to overheating, or whether it's reliable. But I really like riding this wheel - it's a blast. There's one oddity that @captainwells first observed and you may be able to hear it in the video. The wheel emits the typical whine that you expect from these powerful wheels, and my impression is that it's a lower pitched whine compared to the Gotway. But, in addition to the whine there is a very noticeable crackling sound. The best analogy that we can come up with is the cracking sound that you hear from high tension power lines. We joked that we hoped that there weren't a bunch of sparks going on inside the wheel I have to say that now I really want to buy this wheel. But I'm married, so you know where this is going. I have four really nice wheels, none of which I would want to swap for the GT16. So somehow I have to subtly purchase it without making her think that I've lost my mind Does anyone really need 5 very nice wheels (I'm looking at you @captainwells)? Of course @captainwells has a lot more time on the wheel than I do, and he can talk about the app and such things. So if you have more questions he may chime in. I may let him break it in for a few weeks, and if it doesn't explode (that crackling sound) I'll most likely be pulling the trigger
  5. 12 points
    I'm a 79 year old professor, about to acquire a second-hand E+. 60 years ago I rode a unicycle (pedal-powered), and hope some of those ancient skills will enable me to adapt to this new device. I need some sort of portable personal transporter because my knees don't support walking (osteoarthritis hates impact), though I'm otherwise quite fit. My goal is to efficiently traverse the very large campus on which I still teach. A few questions of the resident gurus... Price with training wheels is about $300 - does that make sense? Is the E+ UL-2272? Campus requires it! When I inspect the unit, what should I look for regarding functionality/safety? Remember, I won't be able to ride/test it until I adapt/learn, which will take some time. Is there a way to estimate the condition of the batteries? Is it powered by a simple array of replaceable 18650 cells? Do the training wheels accelerate the learning process, or improve safety? I have a helmet - do I also need bodybubblewrap or ??? Will initial training be enhanced by a shopping cart? If I fail to adapt, will I have a problem finding a buyer in that price range? I'll be grateful for comments/suggestions, other than "Don't do it, you idiot!" Thanks, gurus.
  6. 11 points
    I've been absent from the board for almost two months ( been busy settling back into life in England), but I have been riding. I managed without a car for a month, relying on my wheel to travel. After that I needed to travel further, and public transport in England takes forever to get anywhere, and it's hellaciously expensive. Example Poole to London about 120 miles, £51. I have flown to Spain and back for less!!! anyway, I found myself in Bournmouth yesterday, and because I had my wheel with me,I went for a cruise along the magnificent beach. I'm not joking, having spent 5 months exploring the beaches of the Cote d'Azure, and Spain's Costa Blanca, and Costa Dorada, Bournmouth beach is just as awesome. so I'm cruising along, estimated 20kph, when I hit a small series of unseen bumps. I handled them fine, but my wheel (ks14c ) must not have liked the power surge required to stay in equilibrium, because I got ( yet another) violent pedal tilt back which threw me down the road, like a baseball batter sliding into home, face first. I hit the ground so hard, I couldn't keep my face Up, so my chin got a bump and scrape that drew blood. Today I have a scab about 2 cm square. i also hit the ground so hard that I bruised the pad of my left thumb and the tip of my left little finger was numb for about two hours. note I was wearing wrist, elbow, and knee pads. No injuries to those areas. Pads are good! additionally, both my shoulders hurt. Right now I move my arms like someone trying to learn how to control new prosthetic limbs, I.e very slowly, and I can't carry much weight. i also scuffed up my leather jacket. I was not wearing a helmet, but a typical bike or skate board helmet would not have protected my face ( I'm looking into this) This has been my worst, overall, and first real face plant ( face hits road) ever. And I was cruising along on level pavement at a sensible speed ( plus the bumps) why did it happen? well, I had been riding a while, and I didn't start the day with a 100% charge, so I was down around 53% power ( looked at app after the crash, not before). As I've said before, less than 60% on a small battery ( mine is 340wh) need to be handled conservatively. So why didn't I handle the trip conservatively? Well, actually I thought I did. Firstly, the LED readout on the ks range is wildly optimistic. It was lit up showing 60 to 80% with its woefully inadequate 5 bar range! But I knew that meant mat least 50%. Secondly, I was riding level, smooth pavement. Thirdly I was not pushing the speed, I was several miles into a mild 15 to 20 kph cruise. Fourthly, I was not showing off. this thing came completely out of the blue. Have I mentioned that I HATE the Kingsong violent tilt back? As I said, it wasn't the bumps that threw me down the road, it was Kingsong sudden and violent tilt back that threw me off. What's the point of an accident avoidance scheme that includes a violent accident as its modus operandi?
  7. 11 points
    True. It's one of the reasons why allowing people to try the Wheel is actually detrimental to sales. Typical initial impression by punters is 'how hard could it be?'—classic case is Richard Hammond on the Grand Tour/TG Christmas special—then their confidence takes a beating, feel disheartened & give up on the idea... For the serious Buyer, they do the research, know that there's going to be a bit of pain involved, but once they pay, they're are committed to making it work.
  8. 9 points
    Poor guy, I'm sending him out a set of replacement parts...
  9. 9 points
    Gotway Story time......
  10. 9 points
    Always remember that right of way is given, not taken. If you're a pedestrian, biker, or EUCer, if you get into a collision with a car, it doesn't matter who is at fault - YOU LOSE. So I follow these rules: Make sure you're highly visible, especially at night. I wear a flashing light band on my helmet, and a solid one across my back. I don't care if people think I look dorky - light me up like a Christmas tree! Always assume that a car doesn't see you. Even if you have the right of way, don't pull in front of a car until you make eye contact with the driver! Be careful on crosswalks. Many drivers will roll over the crosswalk - be sure that the driver sees you. Be careful of cars making right-hand turns - they are looking left. Drivers see what they are looking for. Usually, they are looking for other cars. Sometimes they look for pedestrians and bikes. They NEVER look for EUCs. On a crosswalk, people are traveling slowly - drivers expect that. They look a few feet left and right and think they are clear. They are NOT expecting an EUC flying across at 20mph. It's always better to be careful than to be a hood ornament (or worse).
  11. 9 points
    Before Luffy heads to rehab in the next few weeks I decided to give her a makeover with a colorful kid's theme. I vacuum formed a custom plastic shell over a plaster mold I initially made of Luffy. I used transfer paper to impregnate the plastic with a colorful handprints pattern. Luffy will undoubtedly sustain countless knocks and spills as therapists work with a select group of high functioning children. Increasing balance and somatosensory feedback will be the key elements behind the research project. I jump on Luffy today for a short ride after the modifications.
  12. 8 points
    You bet we'll do it again. Albeit better prepared. I'll pick up my end of the story where @Marty Backe left off, where I proceed to go look for some water for Marty. I get to the bottom of the canyon where the stream crosses the trail and realized the empty water bottle I had brought to collect water for Marty had fallen out of my pocket and was no where to be found. Plus the fact that the stream water didn't seem very drinkable.(I was thinking about the A&E show "Naked and Afraid",where the survivalists are always getting sick due to drinking contaminated water and getting violently ill.) So at this point I figured I would head on up this unknown path towards cell coverage to alert the authorities about @Marty Backe , since I knew @Ando Melkonyanwas headed back the way we came for the same reason, now I was doubling the odds of one of us making it to cell coverage for the sake of the parched Marty. As I proceeded up the trail, I had no idea about what I was up against. It was about another 15 miles of steep curvy constantly blocked mountain road ascending 4000 ft Until I found a paved road.I must have had to climb over 25 to 30 landslides on the way out. It seemed like I would clear one roadblock and be able to ride another 200 to 300 feet before I hit another. Lugging a 60 Lb. wheel over a rockslide on a steep incline gets real old real fast! But I kept on perserveering anyway, figuring I would run out of battery power or daylight and have to stay the night on the mountain,or make it out. When I finally got out of the canyon and found a paved road, it was Hwy 2, a mountain road I have previously ridden on motorcyle with no cell coverage. Not knowing where I was, I flagged down a passing car and they told me I was about 20 miles away from civilization (Glendale Ca.) and that if I headed west, I would reach it. Luckily for me, It was mostly downhill because my wheel app was showing 0% battery and I knew I needed the recharge that a downhill ride would provide.So now, all I had to do was survive a 20 mile ride down a 2 lane mountain road without getting hit by some of the speeding maniacs that frequent this highway. Plus I only had about an hour of daylight left. So off I went. I have ridden this road on a motorcycle many times and loved it, so now doing it on an EUC was a new twist! It was a blast and a feeling of "ZEN" came over me as I got closer and closer to civilization knowing what a man and his wheel can do in extreme situations.When I got about 5 miles from Glendale,I started to see emergency vehicles coming up the road and figured maybe they were responding to reports of a lost @Marty Backe.This would mean that @Ando Melkonyanhad made it to cell service already and Marty had help on the way.By the time I was just getting to the outskirts of town,an LASD car saw me and flagged me down and asked if I had been with another rider in the canyon.That is when I knew that they had been notified of the Missing Marty and My ordeal was over! They rode me over to the La Crescenta Sheriff's station(about a mile from where they picked me up) and I hung out and waited to hear if they had found Marty. In the meantime,I answered all the Deputies questions regarding EUC's.They were amazed that someone could travel so far on "one of those things".What they didn't realize is that "one of those things" was the "world famous ACM2040TM" with a 100+ mile range!
  13. 8 points
    I'm really grateful for these constructive comments. My decision is to buy the E+. Wearing my helmet plus wrist protectors I will give it a try. If it "works" for me, great. If not, I'll put it on the market and buy a Minipro or a donkey. ANSWERS S Calif, so no snow and smooth roads. I teach electrical engineering (though I'm obsolete) and entrepreneurship. Replacing solder-tabbed 18650 cells would be easy; encouraging because all such batteries begin with a limit to life. Again - THANKS!!
  14. 8 points
  15. 8 points
    Saving Marty and the Monster (part 2) So. After getting lost i almost started to believe that i myself might not make it out of the mountains in time, so i started praying. And it went a little like this.. "Jesus take the wheel".. " God please put me on the right track and help me get out of here. Please God i really dont want to spend the night camping with the bears. etc..." Sure enough.. my prayers got heard and after some time of carrying my 45lbs acm up the hills i finally saw a downhill route that looked like it was going in the right direction. So i hopped back on my dying wheel and started zooming dawn the hill. I knew that i had to get down quickly because i needed to get to the park rangers asap so the'll have enough daylight to go out and find Marty. After maybe an hour and a half of riding i finally came across the stupid dam that we were looking for the whole time! At this point my phone slowly started working again. I checked the maps and the park rangers station was not far away so i got back on the wheel and continued down the road until i got to the main gate where the rangers were supposed to be. Walked up to the door but unfortunately there was no one there. So i called 911. My call got transferred 3 times before someone in the right jurisdiction was able to send out some help. They asked me where i was and told me to stay there till the cops arrive. So i stayed put. Shortly after a whole gang of police cars and fire trucks and ambulances arrived at the gate. I made the 911 call at 5:45. From 6-9 i was with the cops explaining the situation, and answering all sorts of questions. Luckily i had a took a picture of Marty and Jeff from earlier that day so i gave that to the cops for description of our missing peeps. I had took a few more picture of the trail names and numbers on my way down. Those, along with a picture of Martys gps coordinates of his last known position gave the rescue team an idea of where he might be. The gps coordinates Marty had pulled up on his tracker turned out to be the nearest cellphone tower which was no good. So i had to somehow describe where my missing guy was to 6 different groups of teams (including; the police department, the fire fighers, the park rangers, the helicopter operator). They couldnt belive that we had made it all the way up the mountain and back down almost to the 2 frewway on "that thing!?!?" Anyways making the already long story short, being the "informant" i stayed with the rescue team leader answering more question and confirming new information they were getting until they tracked down our missing man. By the way the parking lot was 20 miles away from the point that i came down to on my wheel. Had a friend come pick me up and take me back to my car. End of the say i had probably done 50miles of mountain riding on my awesome ACM2.5 which saved mine and Martys life. 🙌🏼
  16. 8 points
    Los Angeles Country Sherriff's Dept. search and rescue plucked Marty out of the Angelus Nat'l. forrest.He is fine.I went out the opposite way past the stream another 16miles through dozens of landslides and 4500 ft. of elevation and came out on Hwy.2 and then rode that down another 21 miles and ended up in La Canada/flintwood before I got cell reception back.I would have never made it out if it were not for the "world famous ACM2040tm " and it's incredible 100 mile plus range. All is good! P.S. The L.A. County Sheriffs' Dept. search and rescue KICK ASS! Once they got Marty out, they even went back for his wheel.He left it behind and started walking out and thought That the Monster was going to be a $3000 loss.It would have been if not for the great people of the L.A.S.D. P.P.S. It was 2 ACM's and one Monster on the outing today and the Monster sucks at hill climbing compared to ACMs.Case closed.
  17. 8 points
    I had a bunch of clips of friends and I juggling and EUCing over the past 6 months, decided to compile them into a video. Mostly juggling, but a few good clips of EUC riding and EUC/juggling tricks thrown in there:
  18. 8 points
    Pain is normal in the beginning. You are right. With the wheel straight up and down, the pressure on your calve will be unbearable. So you must lean the wheel at an angle to relieve that unbearable pressure. For example, if you are placing your right foot on the wheel, and your left foot on the ground, then you need to tilt the wheel to the left. Your right foot is on the foot stand, and the wheel is tilted to the left along your calf. As you mount, you will return the wheel to straight up and down position. I use something - like my car, or a wall - to assist the mount, especially in the beginning. So for this example, place your left hand on a support, while tipping the wheel to the left. With your right foot on the stand, use your left support to help you get your left foot on the left pedal (while returning the wheel to upright). From there you can decide to try to ride off, or in the beginning, you can work your way along the car (or wall) to feel what that feels like. Good luck. Took me forever, so any buyer's remorse you may be feeling should be temporary. The fun is yet to come.
  19. 8 points
    OP welcome to the face plant club. Membership is free but the hazing is hell. I have little to add. Others have told you what went wrong. NO WAIT! I do have something to add. For you newbies, you can't treat an euc battery like a gas tank in a car. It won't provide the full power all the way to the last drop. You can cane a tiny car with 6 of your closest friends, up a hill, with your right foot buried in the shag pile carpet, and it will either make it or it wont, but no one will fall out and roll down the road. Ask too much of a half full euc battery and once it hits " no reserve left" you better start flapping, I know I do. So,it's official, not enough battery, too much speed, too much hill, accelerating as well, a heavy rider and loads of spectators, place all ingredients in a bowl, stir vigorously, et voila, face plant brownies. I've eaten quite a few, following this exact recipe, and a few variations to boot,. Still makes the same delicious, gravel filled brownies. i won't ride my 14c close to 15mph, because it tried to throw me off once around 16 mph, WITH a full battery. If I want to go 15mph, I'll pony up for a wheel that will comfortably do 25mph (40 kph). I keep it around 12mph (20kph) and slower on hills. I know other like Marty say it will do 20 mph, but I'm pain averse, and don't want to go where I know pain is lurking.
  20. 7 points
    Don't buy a Monster and then fret about 'subtlety.' That ship has already sailed.
  21. 7 points
    I, like you, have knee problems. I have torn Meniscus in both knees. If I ride distances, I need to wear knee braces or it actually makes my knees hurt worse. I, also like you, rode a pedal unicycle when I was 13 years old but have not been on one since. I took my first EUC to Sam's Club and held onto a shopping cart rack in the parking lot after they closed and rode around it one time. By the time I got back to the beginning, I had it and took off. I rode about 600 ft that night. The next day I took to a local bike path of about 5 miles in length. I rode the whole distance without stopping one time because I did not know how to stop!!! OOPS! I took the whole ride back practicing starting and stopping because I quickly realized it was super important around people and eventually cars. After 3 days of riding my generic wheel, I went and bought a NineBot E+ and LOVED it! It's a very capable wheel. Your price is very good! I've now moved up to a GotWay MSuper and love it even more. Others have answered the other questions well, so I'll avoid those. But I will say that I also own a NineBot Mini Pro, and I think it is MUCH better suited for what you want to do. The amount of control on the Mini Pro is a lot easier to use. You can stop and start without fear of falling off, and around walking traffic, it's a breeze. The Mini Pro is NOTHING like the Hover Boards, and I've owned a few of those too, so I know. The Mini Pro traverses obstacles very well. It can go up and down wheel chair ramps easily, across grass and gravel, and even go over bumps quite well, something the hoverboards can NOT do well. I've even taken my Mini Pro off road and it does well there too since it has a computer that helps keep it straight and level when riding over bumps and angles. The NineBot E+ is also able to do all these things, but it has a much larger learning curve and even when you are very good, you still fall off occasionally. Running around foot traffic on the NineBot E+ is very possible, but not until you are comfortable riding 1 mph or less, and that can take some time. The other thing is that a Campus is likely to be more willing to allow you to cruise around on the Mini Pro over the E+. Especially while you are learning. While learning, many people have quite a few falls and mishaps, and it is perceived as being more dangerous because it simply looks that way. The Mini Pro is super easy to learn, 5 mins tops, and it's SUPER stable. Good luck in whatever you get. Either way, I hope you take up EUC also. It is probably better suited for off campus riding though, which you will LOVE!!! Off Campus, it runs circles around the Mini Pro. On the Mini Pro, I've gone 15 miles on a charge at around 10-12 mph, so it's still capable, but the E+ can do it so much easier when you know how to ride it.
  22. 7 points
    So i had to leave Marty behind to go get some help because after 20 miles of climbing a steep hill on the monster and then going downhill another few miles on a fucked up trail with landslides and trees blocking the way he was too exhausted to get back out of there on his own. This is where my mission began. With %20 battery left i turned back and started heading back up (for about 2-3 miles) to the top where i thought i would have cellphone reception. Somehow i missed the spot and/or my cell didnt pick up the signal so i kept going up hoping that i will soon get a signal. At this point my wheel was beeping at me pretty hard and i was barely moving. Came across two Y crossing. Both times made the wrong turn.. went down for about 10 min, realized that im not heading the right way( looking at a very blurry google maps image i had loaded on my phone) then pushing my wheel back up the hill on foot. So after being lost for over an hour with no map, almost no battery, no water and no cell reception i was starting to think im stuck on this damn mountain for good. To be continued. Stay tuned for part two of operation save Marty and the Monster
  23. 7 points
    It just occurred to me that by using the Wheellog app, where it logs current vs time, maybe a simple test could be conducted. Set the tilt-back to 10km/h and slowly increase speed until tilt-back kicks in and then look at the data to see if there's a noticeable surge in current. Because although I like what you've written, it's still theoretical. I'd like to get some hard numbers, and maybe my test idea would work. I'm going to try it.
  24. 7 points
    @noisycarlos and @abinder3 joined me on an out-and-back ride to the Cogswell Dam, a fantastic area to ride in the outskirts of Southern California.
  25. 6 points
    The motor should have no direct prob by a 25% higher voltage. The primary danger from higher voltage would be "breakdown voltage/disruptive discharge voltage" of the insulation of the motor coils. Insulations are designed with much higer safety factors. By the higher voltage the motor could just be destroyed since by the higher possible currents it could be "overpowered" (overtemperature, demagnetizaton of the permanent magnets, magnetic saturation, etc) which still seems to be well within the possibilities of the motor. Its a quite solid metall part with nice cooling (air contact). Additionally, as frequently reported, the motor wires, connectors, mosfets, etc are designed to act as fuses to protect the motor... ;( Edit: At low speeds the mainboard limits the possible max current anyway - so since with the same max current one gets the same max torque the battery voltage does not (really) matter. For speeds this current limiting is not in effect anymore (torque resulting from this max current is outside of the max torque speed limit) the max torque speed limit curve is in favour of to the higher voltage EUC. -> higher speed and higher torque at the same speed possible (if the electronics and wires survive it;) ). Edit2: @Rehab1: Mentioning a voltage regulator is a nice way to describe how the EUC controller works - the controller chops the battery voltage into pulses of different duty factors. The inductance of the motor coils (by the mechanical ?inertia? (load) of the system) smoothes this pulses to the average of this chopped voltage. So there exists a voltage converter in every EUC. i.e. no matter if looking at the 67,2V or 84V version of this wheel with the same motor - if they drive side by side with the same speed and acceleration and the same resistance forces (wind, incline, riders weight, balancing, etc) the controllers of both wheels generate the same averaged voltage for the motor.
  26. 6 points
    Sounds good to me, although the training wheels are pretty useless (used mine, the training wheels that is, for maybe 10-15 minutes before taking them off, useless in retrospect...) No idea Ask the seller to ride it around while you watch, although you can't tell everything from that, but at least it should then be a working unit. If you have the equipment, like a charger / PSU that can show you the amount of watt- or milliamphours going into / out of the batteries, then you could check how much charge they still hold (first discharging the battery to empty and then charging it to full while measuring the milliamp- or watthours). E+ should have something like 320Wh / 5750mAh, although the maximum charge capacity will drop with wear. Other than that, no easy ways I can think of right now... range testing? But then you'd need to know how far a brand new battery set can take you to have a point of reference. If memory serves, Ninebot E+s use 15S2P -batterypacks, that's 15 cells in Series per set and 2 sets in Parallel. Nominal voltage around 55.5V (3.7V * 15 cells in series), maximum around 63V (4.2V * 15 cells) when fully charged. Relatively "simple", there's the cells and also a BMS, Battery Management System -board inside the packs that monitors voltage/current/cell voltages inside the pack, but not easy to replace single cells, unless you have something like a battery spot welder... In my limited experience, neither @Gimlet's idea of having other people help you in the start (walking/jogging beside you to give support) probably helps. Wrist guards and elbow/kneepads might not be a bad idea either. You can bubblewrap the wheel if you're worried of the shells damaging during falls (at the beginning, the wheel will probably tumble to it's side quite often). Never tried it myself, maybe? Depending on where you live, if there's demand for these things and it's fully functional unit and the battery's still good, getting it sold at that price shouldn't be too hard.
  27. 6 points
    Congratulations and my admiration to you for wanting to venture into this slightly dangerous sport! I'm no guru, but I might be able to offer some input. I would doubt the Ninebot One E+ has UL-2272 certification. I'm not sure that any of these wheels have it as UL certification can cost tens of thousands of dollars so many Chinese companies likely do not pursue it. Does anyone know if Solowheel is UL certified? That might be an unfortunate roadblock for you. I do know some hoverboards are now UL certified so that might be a possible alternative depending on how rough the terrain is that you need to cover. They aren't the best going over uneven spots outdoors. If you are in a snowy area in winter I wouldn't recommend riding either a EUC or hoverboard, but some people are able to. I would ask the seller to demonstrate that it works well by having them ride it. Try turning it on and see if it balances forwards and backwards. On the Ninebot app you can have them show you the total mileage ridden. Check for visual damage. Make sure the handle is sound and functional. Batteries can be an unknown. The seller would be able to tell you how far he can go on a full charge which for a good pack and 167 lbs over varied terrain can be about 22 km. Packs seems to last a couple of years or more? The battery pack is a bit of a complicated group of cells with ends spot welded together with nickel strips so replacing single cells is not within the capabilities of most people. Some have done it though. I would recommend all protection every time you ride. It's always that one time or the one spot that isn't protected where injury occurs. At 79 I would want to minimize injuries as healing is not as fast as 60 years ago. Buyers might be hard to find or not depending on your location and asking price. People still seem to be wanting to buy these Ninebots up even though they aren't the latest and greatest. BTW what courses do you teach?
  28. 6 points
    In my opinion you should forget the training wheels. The generally held opinion is that they don't really help at all. Having ridden a unicycle in the past you will probably pick up the basics within an hour or even less, they really are much easier to ride than a regular unicycle, but be careful with your knee problems as running off the first few low speed stumbles/mistakes could be a problem. Initial learning is best enhanced by a colleague, preferably two trotting along each side of you for a little support via your hands.
  29. 6 points
    I don't disagree with anything you said, but you don't actually expect better service or quality from Rockwheel do you? I rode a GT16 last week and I can say that it does not exude quality. I liked the wheel very much but if I end up getting one I think I'll be even more on my own than I am with any Gotway wheel. I just spent a very long day riding back trails in the mountains with my Monster and two ACMs. All of the wheels took a beating but they kept working. Buy a Gotway from a reputable dealer. Any out-of-the-box issues like the wheel above would be addressed (by a reputable dealer) and you would not be out of money.
  30. 6 points
    Hello everyone. This is a one year of usage review of the Xima Lhotz 340wh. I have the “old” version 30km/h 340wH and bought it for 1000EUR was only 1 place to get it (its now cheaper…) Short version for people who don’t have time. Would i buy it again or recommend= No. Images of faults below. Longer version for people who have a little more time The good Its a tank (shell wise) and can take a beating. The BMS+ control boars gives a great sense of security, it doesn’t shut off with low battery etc, it beeps+ tilt back and forces you to stop. The ride is fantastic both asphalt and trails, rocks and hills. It never hurts my feet. A general sense of not cutting out. I have riden this wheel in rain, snow, ice and summer without no problems. (i thought, see below) The bad Letters came of the moment i removed the protective film. (i don’t want the text but some might want that.) Not possible to set beeping on off och custom settings. No tiltback settings. App is OK, a bit slow and missing some features for me like the “new” version, engine power etc) I always use Kevins version and compared to new version of other apps it now feels very basic. The ugly Its marketed as a “tank / offroad” device with IP65 rating but this is not true. My front and rear leds have rusted and eventually shorted the LED control board while removing dirt from the leds. The inside of the wheel i covered in dust. The battery pack broke (broken connection after vibrations) so that had to be repaired, when will the next connection brake? Bit of an trust issue... No manual and explanation of all fault codes. Stainless steel handle plates rusted, its not all stainless steel. LED stripes broke side, front and rear. Would i buy again? Short answer, No. With everyday riding in all types of conditions 1 year of usage is not fantastic and i expected more. There are more powerful, higher wH fast wheels today and the reliability and quality on wheels like Inmotion V8 or ACM at almost the same prise is well worth it. I would have bought again if it held to all the claims and if it had a bigger battery: IP65, no dust + water entry in wheel and leds., Battery pack bracken due to vibrations!? its an offroad marketed device. Homepage, manual and support seem “off” there is a feeling they will disappear. 340wH is to little for hills and “offroad”. Upgrades: I recently moved to a place on a hill and every time i went home (with full battery) the low voltage alarm went off so i had to stop and this resulted in a DIY battery upgrade +180wH total 520 wH and after that no more low voltage alarms and i can go for 30km in 4 degrees C at 20+km/h average speed so now the wheel is great range wise. I can go 27+km/h up that same hill now. For me this wheel in its standard configuration is to weak with 340wH battery and only because of that i wouldn’t buy it again. Add to that battery pack failure due to vibrations + other issues and the answer is clear. Its been a great wheel to ride though before i lived on a hill (and after battery updates living on a hill) for almost a year coming from X8 but today the choice would be different. If IPS would build a wheel with updates that would fit my needs and with updates addressing all my concerns and faults i would buy IPS again solely because of the fantastic BMS+firmware+engine+ride combo that gives great trust. Images below: Have a good weekend! Image of back led with dust inside. Image inside the light. Rusted led chip. Backside of led stripe. Broken LED board control. Design flaw.. Broke LED stripes side. Rusted handle. Battery repair. Broken connection in battery pack. Repaired battery pack. I had to tape the pack tighter as there was a lot of "flex" between the different areas of the pack, this resulted in the broken connection.
  31. 6 points
    Well, sometimes the answer is WD40. As we all know, all of life’s problems can be solved with two things — duct tape and WD40. If it moves and it shouldn’t, you need duct tape. If it doesn’t move and it should, you need WD40.
  32. 6 points
    Another way is to 3D print some pedal covers which extend the existing pedals. I´ve been using mine for a few weeks now and they have been holding up really well since 95% of the weight is still carried by the metal pedal underneath. The load on the extended part is only a few kilograms at most. The surface is covered with anti slipping tape and the covers are secured with two M5 screws and some glue. An M5 thread needs to be cut into the pedal for the screws. The pedals folds up normally despite the covers. Sorry about the dirt on the pedals, it´s been rainy... http://www.thingiverse.com/thing:1938679 I´m currently working on designing a larger version (260mm) because my earlier printer version was limited to 220mm.
  33. 6 points
    Wow, so sad considering you've only had it for a couple of days. You really had an abusive fall. I can say that my Monster has taken a lot of abuse and mechanically it's been holding up real well. The shell isn't doing that great (but not as bad as yours yet). As I also said in my YouTube reply, I wouldn't go through the expense and time of getting a new shell, because it's just going to get damaged again. Instead, patch it as best you can and live with the road scars. When you're flying through the air you or anyone around you is not going to be caring about how pretty the wheel looks - or not looks Hang in there and try to readjust your expectations so that you remain happy with the Monster.
  34. 6 points
    Tilt-back is a mechanism to incentivise the rider to slow down. The mechanism is simple: the neutral inclination angle of the shell and hence the pedals is changed from horizontal to negative, tilting the pedals back This gives the rider the incentive to initiate a slow down (see also below). Here I discuss my understanding of the energetic (and a few other) consequences of tilt-back. Remember the feeling to lose the ground under your feet when the tilt-back sets in? Here is why. Simple geometric consideration reveals that if the riders feet stay in contact with the pedals, tilt-back raises the riders front feet and lowers the riders heels. Lowering ones heels feels like losing support and means that the riders body lowers as well if the heels remain grounded. The effect from the centre of mass: most of the work to raise the riders body (or the toes ) is done by muscles, hence the energy comes from the food the rider has digested. (Lifting 102kg by 1cm loss-free needs about 10W=102*9.81*0.01W for one second or 100W for 0.1s thereby adding 2.78mWh=10/60^2Wh=0.0024kcal to the potential energy of the rider). However not only the rider needs to work: when the wheel pushes the rider forward (or backward), straightening up or raising the riders body adds momentarily to the riders perceived weight and hence to the power demand of the wheel. Vice versa, bending the knees or lowering the body gives the wheel a short period of decreased power demand (perceived decreased rider weight). Lowering by 5cm would remove the entire rider weight for 1/10 of a second. This is definitely something one should exploit in any critical situation: the reflex of bending the knees to keep or restore the wheel under the rider is a life saver! I had two or three quite surprising saves from intentionally going rapidly-almost-falling-like deep into the knees. Unfortunately, going deep into the knees is particularly difficult and somewhat physically limited under tilt-back. Yet, soft knees are our suspension. Soft knees get us over bumps and out of potholes. Bending knees is THE invaluable reflex when riding an EUC. But I digress... First summary: when tilt-back sets in, the riders heels lower and (without body posture change) the riders centre of mass lowers and this leads to a small but possibly notable power demand reduction. The effect from the change of tilt angle (here I stand corrected): because changing the tilt angle backwards increases the speed of the motor traveling relative to the shell, changing the angle requires energy. The amount however seems to be rather miniscule. If we travel 20km/h=5.6m/s with an 18" EUC and change the tilt angle from 0º to -10º in 1 second (pretty scary, IMHO), the shell position changes over the wheel circumference by 4cm = 10/360 * 18" * π. Hence, the circumferential rotation speed increases for 1 second by 0.72% = 0.04m/5.6m, i.e. by less than one percent. I am actually not sure what the power demand of this mechanism is (between 0 and 1.4% seems a good guess), but to all I can tell it must be negligible. Tilting the wheel also lowers its centre of mass. Lowering 20kg by 1cm in 1s may deliver 2W for 1s at most. Second summary: all in all, I do not dare to decide whether the effect from titling the wheel saves or demands a very small amount of energy. For the remainder, the simple but conclusive approach is to considered energy conservation: any consumed energy from the battery must be converted into kinetic energy or potential energy or heat. After the tilt angle has changed, from the energy balance perspective nothing is different to the situation before. If the wheel consumes additional energy, it produces more torque. More torque leads to acceleration (hence energy is converted to and conserved as kinetic energy), just as it happens without tilt-back or while the tilt-back sets in. Some people feel that under tilt-back they seem to apply more pressure to the front foot, or equivalently, that the wheel applies more up-pressure. This means that the wheel produces more torque to provide this counter pressure. Torque however invariably leads to acceleration of the wheel (or the wheel and the rider). The other way around, if the wheel does not accelerate, this feeling is a perception due to the uncomfortable foot position but not actually an increased up-pressure. Finally, slowing down the wheel, with or without tilt-back, can be accomplished by initially accelerating the wheel to the front of the rider. Tilt-back is the invitation to do exactly this. In particular, if the rider does not adapt to the changing neutral tilt angle, the wheel accelerates (without the rider and quickly). This acceleration requires some additional power (less than the acceleration of wheel and rider). With the knee-bending trick applied immediately, the additional power to initiate braking can at higher speeds probably be reduced to zero.
  35. 6 points
    Your story telling makes me laugh Ando Yes, since I'm tying this, I did make it out, found by a Helicopter and Search & Rescue. 16 hours after leaving home, I got back. I'll post a 'story' tomorrow (Sunday) that explains the madness that happened to me. Jeff has a good story to tell too, and your's sounds great too. I can't wait to hear the full story of what happened to you. This was an EUC ride for the ages that fortunately now we'll all be able to laugh about in the future. I'm never taking my damn Monster on mountain trails like that again. And please, nobody tell me again how a Monster can climb nearly as good as the ACM - give me a break
  36. 6 points
    @Joe Holliday I echo much of what @dpong said. The sensation of the calf/shin weight on the leaning EUC's pad counter-balancing the downward gravity of your same foot on the pedal is a key concept to learning/mounting the EUC, one of the hardest concepts at that. You will feel some pain; we all did in the beginning. If it's that excruciating on your calf, maybe there's not enough weight distribution going to the same foot pedal? Calf weight on pad vs. foot weight on pedal should be pretty balanced, helped out by the leaning of the EUC. Also, you might experiment with foot positioning on the pedal. For me, when mounting, my foot tends to sit on the pedal more away from the EUC body, rather than flush with the EUC body (like I had thought when first learning), so that the ankle does not remotely touch the EUC body, and my lower mounting leg forms the hypotenuse of a right triangle, with the EUC pedal and EUC body being the sides of the right triangle.
  37. 6 points
    KingSong has a public Facebook group. That is where I found this awesome treatment of the KS16S, the rest of the text here is from the proud owner: The Viper wheel with a awesome backdrop!Model: KS16S (Thomas Hoon, Colin Heng - The Wheelies )Modification: Jeffrey Zen (Trimming of the casing and fitting a 16x2.5 inch tire)Vinyl wrap: James Soh ( Design, wrap and profile photo Kazam SG)I would like to thank all of them for making this wheel a reality!
  38. 6 points
    Here's is the video, is a bit big 12m as I left running... speed up some boring parts and normal speed the checks and test ride. Hope it helps others if they have same symptoms on the wheel. Cheers
  39. 6 points
    I've hit the limit of 40 reputations a day (I've hit this limit a few times). This limit must be arbitrary and therefore I wonder if it could be raised. Apparently it's a lower number for new members so there must be levels that can be set. Maybe members in good standing can have higher limits? Sometimes I'm involved in a lot of threads with a lot of good content being given and it pains me sometimes when I can't give someone a Thanks for listening to my complaints
  40. 6 points
    There is no doubt that falling even at low speed will force your body to "catch" itself from ground impact by placing the extended arms down, normally with palms down if enough time. I have personally seen MANY cases in MANY different sports where wrist guards not only protected the palms from scraping but FAR more important the wrist guards stopped breakage! I have to think it is better to have broken finger VS broken wrist. Even it I do a super short EUC ride I ALWAYS use wrist guards, and when doing any more FULL protection! To each his own! My jury has voted 100% for the use of QUALITY wrist guards as the very first element of EUC protective wear! ukj
  41. 6 points
    Here is that it looks like and some of what i had to go though.. lol
  42. 6 points
    I never hear the whine anymore I just wrapped up riding the new Rockwheel, many miles. It has a nice whine too, but it's more deep throated. Film at 11
  43. 5 points
  44. 5 points
    I own InMotion V5F+ and KingSong KS16(c). > I definitely prefer the looks of the InMotion offerings... I can see that, and I pretty much agree, but... In use I find the V5F+ too narrow. Makes jumping more difficult, and high speed less stable (there is zero leg contact while cruising, and that seems less stable than the minor pressure of the wider body KS16). I don't find the 14" vs 16" a big difference. (But I've ridden non-E unicycles from 16" to 36", so 14 vs 16" EUC is a rather small difference to me). The pros cons I care about with the V5F+ vs KS16: - V5F+ light weight - KS16 800Wh more range - I'll plan on 30-some miles on KS16, only low 20s miles on V5F+ - V5F+ too narrow - V5F+ cover is quite protective (except of the handle) - KS16(c) slightly faster (18.3mph vs 15.5mph) - KS16 has smoother tiltback (I find v5f+ tiltback "wishy-washy") - KS16 more flexibility in alarm setting - KS16 usually considerably pricier! - KS16 has a 8kHz high pitch squeal -- first long rides I thought this might be intolerable, it bothers me much less now - V5F+ pedal height and shape is "perfect" -- I have _never scraped a pedal just doing a tight turn on the v5f+ -- All other manufactures should pay attention to this! (?maybe this is because of the narrower body?) I weigh 160lbs, ride mostly flat, mostly 12-16.5 mph speed range. My choice? Usually I choose to ride the KS16 (exception: If I'm just doing "lazy riding" then the V5F+ is a great machine and does not have the squeal).
  45. 5 points
    Thanks for sharing, enjoyed that video. In the limited two months that I've interacted with GW staff, it's wonderful to see how open & adaptive they are to critiques & suggestions.
  46. 5 points
    I am not sure what exactly y'all are talking about but If it is in reference to the shove-it while rolling...it can only be done up to a certain speed, science dictates that the momentum/speed will be decreased almost instantly due to the rubber tires (even on ice...I tried) Also the wheel is just too heavy to get off the ground while it does the 180° spin like on a skateboard. However if I am off base and you mean 180° body varial aka Hop 180° reverse landing or a 180° hop reverse landing, well, you can do those at almost any speed. Btw I have never gotten the over power warning during such tricks, only on slopes. I believe you can find the reference to all of 'em in this video.
  47. 5 points
    It's just a statistical observation. I've been selling Wheels for over three & half years, my firsthand experience is that when most novices try the Wheel before buying, there's not a very good chance of following through on a purchase. I know another company in the UK who had also tried this model, in fact, they were pretty committed to it, with weekly sessions, dedicated individual, etc., they dropped it after a couple months.
  48. 5 points
    Ha! @Jason McNeil I took things out of order then! As a beginner, I went: 1.) buy $$ with minimal research, NB1E+, ooh pretty lights 2.) "how hard can it be?" 3.) after 15 min trying to ride, severe buyer's remorse 4.) well, I might as well invest the time before this thing becomes an $800 doorstop.
  49. 5 points
    Disclaimer: I don't wear wrist guards or any protection for that matter when riding EUCs. I don't know if you are nuts but avoiding wrist guards to protect your fingers is, at least in general, most probably the wrong choice. I see your point with making a fist, but I still can't quite get around to convince myself you would be better off without, in case of an accident. AFAIK braking a finger is usually less annoying than braking the wrist. The latter is very annoying and often takes quite long to recover from.
  50. 5 points
    This is the thanks I get for helping you become inducted into the highly coveted Plus MembershipTM? Perhaps a framed commemorative jpeg? Sheesh I know you Californians are pretty laid back, but not even a hey Hunka - thanks buddy! I owe you one!? I think we may need to review this application... Et tu, Marty?