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Showing content with the highest reputation on 04/27/2017 in all areas

  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. 14 points
    I'm going to go out on a limb & say I think KS need to rethink their developmental priorities. If the goal is to break the land speed record riding through a shopping center on one Wheel, great, but if they want a successful long-term business, then I think they should be focusing App development, improving waterproofing, serviceability & reliability. I don't believe there is the remotest chance of any regulatory body approving a >40kph Wheel.
  3. 9 points
    Poor guy, I'm sending him out a set of replacement parts...
  4. 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!
  5. 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. 🙌🏼
  6. 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.
  7. 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
  8. 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.
  9. 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.
  10. 5 points
    I think the big incentive is the e-wheel itself ... it's an advanced sort of urban transportation. You use it, go faster than a bike, and carry it around when you aren't using it. I think they are similar to snowboards and motorcycles, both which sell well without customer trials. But both have schools, which e-wheels lack. I think this would go a long way towards popularizing the devices. I would suggest the following for EUC schools: theory courses about how to ride and control an EUC. You could purloin much of the material from this site. a track of skyhooks and body harnesses (see picture) to hold people up while the traverse an e-wheel training course (a small circuit, maybe 20-50 meters in circumference. a bunch of No-Name low power Airwheel Clones (~$90/ea from Alibaba) with velcro on the pads to attach to velcro on shoes that the students would wear. This way the wheel could not get away from you; but in a tough situation, would break away. You could have 2-3 skyhook tracks, with one for beginner classes, and 2 for general practice (and perhaps with more complex routes). These tracks would be made from the same materials as say a garage door track (maybe a little heavier duty to accommodate portly students). Total cost of outfitting a place might be $10,000, plus rent, advertising, etc. which could be low since you could put these in old industrial buildings. You could run a shop as well which might be the major source of profits.
  11. 5 points
    Very encouraging, and thanks for posting. The wiring looks much better than what I've found in my three Gotway wheels.
  12. 5 points
    Wheels aren't there yet, that's just how it seems to be. I'd also not buy another Gotway now, not because they are bad (and I already have one) but because I just expect more for the money. That being said, if I had no wheel today, I'd buy the ACM again in an instant. As @Marty Backe said, still the best wheel that exists (imho). KS18AY and KS16S are close contenders, but ACM has the perfect sturdy shell and bigger batteries. I can't agree with your fuse comment though. You'd have a faceplant anyways, just with an added broken wheel/board when the bigger fuse breaks. What is really needed is a warning before any electrical component is overstressed (apparently they don't monitor the fuse, which should be a no-brainer). As you see, KS isn't there yet too, so it's not just Gotway (but KS is certainly better). Don't let yourself be stopped from getting a wheel now though, no high stress = everything is going to be fine. Just be aware of the limitations and drive accordingly and have fun
  13. 4 points
    Thanks for sharing that epic adventure you guys went through! At least you didn't have to drink your own pee like Bear Grylls. I had images of a helicopter hovering and dropping a rescue worker down to harness you up into it like in the movies (San Andreas). Maybe some of those FRS/GMRS radios would have been handy to help communicate between riders as well as those Camelbak hydration backpacks. I watch a lot of Bear Grylls Man vs Wild so I know you need to stay well hydrated. Did you guys take any breaks? I find climbing irregular paths to be a pretty tiring technical ride. I can't imagine doing 3500 feet! Bringing high energy snacks might have helped too maybe. I wonder whether one of those retractable handles fastened to the front of the Monster would have allowed you to apply forwards pressure on the case to help climb without needing to bend over so much to grab the handle. It could serve as a trolley handle as well. Or maybe adding some curved padding that sticks out just below the knees so you could maybe apply more lower leg pressure to the case is another idea. I think we each need to know our physical limits and be sure that we respect the fact that sometimes man conquers the mountain while other times the mountain can conquer the man. For me, even a basic 50 minute ride on easy pathways is pretty tiring on the legs. A ride like yours would be like running a marathon, and I don't think many people would be prepared physically to be able to do that without a lot of training. Thank goodness you all returned safely, and what a testamonial to Gotway wheels! I can't imagine a wiring failure so far away from cell service and civilization! Maybe a basic tool kit and survival pack might be wise to take along too...
  14. 4 points
    Cool this be true @Jane Mo ? 84v MCM4? I found this on the Facebook page
  15. 4 points
    About two years ago I was riding my hoverboard on the sidewalk. I saw in the distance coming my way three young black thugs. I use the word thugs because that is what they proved themselves to be. As I came closer, I moved to the side to let them pass and said a friendly greeting to what I believed were three nice black guys no different from any typical person one meets on the street. They pushed me off the hoverboard. As I lay on the ground, they picked up my hoverboard and ran off. This all transpired in probably less than a minute. I was thankful that the encounter wasn't any worse. It's very possible one or more of the attackers could pull a knife or a gun, but thanks to the Lord they did not. Nevertheless, I was surprised how traumatized I felt for weeks thereafter. It gave me a new level of sympathy for victims of "real" violent crime.
  16. 4 points
    As you may or may not have noticed, the pedals (I assume due to the different materials and how that affects colour reproduction) are a slightly different white to the body. To anyone with OCD, including myself, it's a little bit of an eye-sore, however I've found an unlikely (and slightly silly) "correction" (excuse the pun) for this: My pedals were looking pretty scraped, and I was too lazy to buy/look for white paint. So instead I used Tipp-Ex (I think in America you call it Whiteout). I've found, for reasons unknown, that the specific white this produces looks identical to the shell of the wheel when applied to the pedals. It means every time I cover the scrapes on the pedals they start to match the rest of the wheel more....so much so you could theoretically just buy a load of it and use it as actual paint.....if you cared. 👍 Ps. I fully accept that this may well be the lamest post in forum history 😝
  17. 4 points
    I think a big part of the problem is that if you pull a weapon, you have to be prepared to have it used against you and also face consequences of using that weapon on others. When you consider the trouble that police officers have when they use deadly force, I wonder how lenient the investigators and courts are for citizens in similar situations. If the EUC rider whipped a gun out, and in the heat of the moment dropped it allowing one of the perpetrators to grab it there could be a murder investigation instead of a victim walking away with some bruises and a story to tell. Ideally we all imagine "Dirty Harry" situations where the bad guys always lose, but when faced with a high stress situation things can take a different path quickly. I'm just glad the EUC rider is okay to ride another day, and I hope they catch the attackers to bring them to justice. Do people deserve to be killed for mugging someone? Maybe? I don't know. At what point do you think it's okay to kill someone? If the rider had a gun and successfully killed all three attackers, would he be in trouble if there was no video evidence? Sure he had some bruises and a broken helmet, but imagine what the families of the attackers would be saying about the deaths? Family members of criminals always have something good to say about them when interviewed on TV. The EUC rider could then be facing manslaughter charges and time in jail, or do you think he would be let free without any repercussions? Now imagine if he killed one attacker, severely injured the next, and paralyzed the third requiring a lifetime of extended care and medical bills. Do you think the families and lawyers would not want to pursue charges regardless of the attackers' culpability in the crime? It's a very complicated path once you throw weapons into the mix. Justice isn't always a black and white subject unfortunately.
  18. 4 points
    Agreed, @Rehab1. I am an NRA pistol and self defense instructor in my spare time (when I have any!) and I agree. Guns are not evil, they are simply a tool that is useful to defend oneself from real evil in this world. Guns are the great "equalizer" that allows the innocent to defend themselves from evil whether or not the attacker is younger, stronger or attacks you en masse. Where I would disagree with you is in your choice of language: If faced with the situation, I train my students to "stop the threat," not to blow someone away. If it ends up in the fatality of the attacker or attackers, then so be it. But all we should want is for the attack to stop.
  19. 4 points
    You ruined my conspiracy theory! L
  20. 4 points
    Granted, the majority of riders in our neck of the woods are men, but you may be painting with too broad of a brush your stereotypes of women. I see lots of evidence of women riding in Asia. There are always a few in the French group rides, and women appear in various American ride videos. You are aware that there are large numbers of young women who participate in very active sports. I doubt they would act as you describe if they were made aware of EUCs. And on my rides I've been positively approached by women who are intrigued. I can't disagree with your personal experience, but I don't see any of that where I am in California.
  21. 4 points
    As others are stating, please take many many precautions. If you don't think you could stand to slide across concrete at 12 MPH (doesnt sound like much, but it feels a lot worse), then seriously consider a safer riding platform. You WILL fall. It is only a matter of time, especially if you are just starting. I have about 2,000 miles on electric unicycles. I have had 2 baddish falls (no fractures, but loss of a lot of skin and a good amount of blood). You should look like you are suiting up to ride a motorcycle if you are riding this will full protection. Ride slower. Do not push the unit. Falls generally happen when you topple the gyro (exceed its limitations to hold you up). These situations happen when you accelerate too fast, you are riding at a higher speed and don't react quickly enough, or when you have a lower battery and the unit doesn't perform the same. Never ride lower than 30% with your ninebot. Keep it charged. Keep your head on a swivel. No one pays attention to their surrounding anymore. You must, and you have to know what pedestrians are going to do before they do it. I also work on a large campus. The good news is that Ninebot makes some of the highest quality wheels out there. It is my hope that I will have the health and spirit to do what you are doing at 79 years old. Good luck and please be extremely careful.
  22. 4 points
    My Grandfather rode Motorcycles till he was 90. I'm hoping to do the same, and hopefully the EUC too, but I may need to opt for the safer ride of a Motorcycle. Sounds strange saying that...
  23. 4 points
    Obsolete? Pishaw! Times may change, but never think you're obsolete. Your students and peers are going to be amazed once you get riding the Ninebot. Many people even would not dare try it let alone attempt it at your age. Would anyone consider Fred Astaire's dancing abilities obsolete? The classic knowledge, skill, and principles are where we came from. I don't think the fundamentals of sound knowledge and experience can ever be considered obsolete. They got us to where we are today, and although some may forgo mindful engineering principles to save a buck or two, they end up realizing sooner or later that there is wisdom and value in following proper design elements and principles. Welcome to the forums, and safe riding!
  24. 4 points
    I'm quite certain we'll see a return to Blue/Red, in a communication yesterday, wrote: "About the purple shells, maybe I'll order a couple sets as spares. In the West most owners prefer subtler colors like the Blue/Red, purple might be a bit too much for some."
  25. 4 points
    I actually added a paddle board elastic bunggy cord. Clipped to my belt. Only purpose is so the wheel does not run into others if it goes out of control for example down hill or bad flip.
  26. 3 points
    The V5F as sold by eWheels optionally comes with a "rapid" charger that outputs 2.5 amps. The standard charger that comes with the V5F outputs 1.5 amps. I have both and figured I'd use the standard charger for ordinary at-home charges since I don't care how long they take, and pack the rapid charger for all-day trips so I could pick up some juice along the way. The two disadvantages of the rapid charger are its size and weight. It's considerably larger than the standard one, which makes it less appealing to carry in my backpack. (See photos.) The standard charger weighs 15.1 ounces (428 grams). Rapid charger is nearly double at 1 pound, 10 ounces (744 grams). The rapid charger also has a glass fuse which I suppose might break if the unit was dropped, but spares are supplied for that possibility. I don't baby it, and so far it has been fine. Even with the added size and weight I still prefer to carry it for day trips. Here are the result of a recent charging session with the rapid charger on my V5F. This is with a relatively new battery (<200 miles on it). START: 30% battery (was reading 27% immediately after the ride but I let the battery sit for an hour so the voltage could settle for a more accurate reading) 20 minutes charge time (coffee break): 50% indicated 30 minutes charge time (lunch break): 60% indicated. (Note on the V5F this means about 12-15 km of safe riding distance for me.) 40 minutes charge time (leisurely lunch): 75% 55 minutes charge time: 90% END I stopped here since the battery will charge very slowly for the last 10% and so there's not much advantage to a rapid charger for topping off to 100%. On another thread, @Marty Backe asked if it was really worthwhile stopping for "recharge breaks" on a trip. If you have a huge battery pack with a 5+ hour charge time, it's probably not worth it, but you probably have the range to keep going anyway. For lighter wheels like the V5F, V5F+, Ninebot One E+, etc. with 320-480wh batteries it makes a big difference, especially with a faster charger than the standard one. I can stop for a 20 minute break and pick up several miles of range, which effectively gives my V5F a usable range of something like 32km with two short charging breaks. For urban rides where power can be found (in coffee shops, restaurants, bars, public buildings, etc) this works well.
  27. 3 points
    Very enjoyable Marty! You chronicle your stories well! Just be glad Hunka was not with your group. Instead of a Bear Grylls adventure it might have turned into Naked and Afraid! Great Idea! Myself if I was lucky enough to travel to the remote locations you are afforded I would prefer a dual purpose radio that can easily communicate in the mountains with others riders, message and also has a satellite personal locating beacon. http://www.outdoorgearlab.com/reviews/camping-and-hiking/personal-locator-beacon/garmin-inreach-explorer-plus
  28. 3 points
    Me as well....I hope! I own a Harley Trike so it is both safe and allows me to take trips with my wheel stored in the luggage compartment.
  29. 3 points
    Thanks I would not call it an ordeal, just an involuntary but educational wake up call from reality. I won't push the wheel too hard in the future, not worth figuring out the extreme limits of whatever is the weakest link now My usual (did it a few times) mountain tour is around 7% average and has some shorter steeper parts and it worked fine every time, that's enough.
  30. 3 points
    My view is that the wobbling which is experienced by beginners comes mainly from standing too far on the rear side of the footpads. From my experience nearly all beginners make this mistake. The feet should be placed on the footpads in a way that the middle of the lower leg crosses the axis of the wheel. When one stands too far behind, the wheel wobbles at forward driving, when one stands too far in front, the wheel wobbles at backward driving (the latter is not recognized by a beginner, because he doesn't try it ).
  31. 3 points
    Parallel connection is by far not as critical in regard to cell specifications as series configuration of cells. However If different cells are directly paralleled as worst case the weaker cell deteriorates until it could be pushed by the stronger cells to reverse polarity -> desaster Also nicely selected cells deteriorate differently and can end in the same desaster... For paralleling cells with different specifications it's best to build packs of this different cells and parallel the whole packs and not every single cell. The higher capacity cells should in such a configuration be able to nominaly deliver more current (?imho direct proportional to the capacities?) Unfortionately not to detailed sources in regard to this topic: http://batteryuniversity.com/learn/article/bu_803a_cell_mismatch_balancing http://batteryuniversity.com/learn/article/serial_and_parallel_battery_configurations
  32. 3 points
    I wish my wife would learn, but she won't. Ever. She won't even stand on my minipro
  33. 3 points
  34. 3 points
    Let me just say..."I love my V5F+ and the excellent customer service from @Jason McNeil!" @Joe Holliday before long you will also be repeating this mantra!
  35. 3 points
    My Psychic Summmoner powahs have weakened.... no sign of Cloud or That Fat Unicyclist anywhere! The biking robot is very cool. It even lets go of the handlebars and does a wave. I wonder why the Japanese haven't put out their own EUC design. It would be cool to see a company like Sony, Honda, Yamaha or Suzuki put out a fully re-designed version of a wheel. They probably don't see it as a large enough market to want to get something into production or maybe they face similar challenges like the US or UK face when creating transportation devices.
  36. 3 points
    Hi guys, after a few more days of riding with the ACM, I've reached 250km just from my night riding, I get about 1km per percent of battery ! That would mean 80km with a safe margin, at good speeds. I now trust it much more than before, it is very comfortable compared to my mcm4, I can now accelerate very fast, the available power is insane (due to my light weight) and I can pass a cyclist very quickly, going from 23kph to 30kph in an instant and then going back to 23kph, the wheel never beeps on me, I try avoiding getting over 36kph at max speed, and with this I feel very safe. I now cruise at about 30kph when there is a bike lane where I have great visibility, it really makes a difference compared to the 20kph cruising speed of the mcm4, I will have a hard time going back to a slower wheel after this one. It's agile enough, it has plenty of range, it has enormous power, it can go very fast or very slow, it's very predictable...I would say if it wasn't for the weight, it would be a perfect wheel ! I can't wait to try it in summer, with less clothes on, and go for 70km trips (like with my actual E-bike), or even more if I cruise at 20kph
  37. 2 points
    Actually pretty nice little Saturday. You were going to go to Home Depot, maybe Bed Bath and Beyond, but didn't have enough time. Glad everybody is OK and lived to tell the tale. Lessons learned for all of us.
  38. 2 points
    Amazing. interesting and dangerous adventure. Thanks for Marty and Jeff sharing the experience with us. What I learnt from this story for preparing our own adventure are i) bring enough subsistence supplies. ii) Use ACM or modify the monster to make it easy to lean/push. iii) Bring communication and SOS equipment. iv) buy a book about the surviving skills in the wild used by pilots and paratroopers. It teaches how to get moisture/food ( probably ants) in the wild. About modifying Monster to make it easier to lean forward: I have to squeeze the pad and bend my lower legs forward to make my Msuper go up steep inclines. If I can change the pads shape to look like an L, with the horizontal - facing forward, then I do not have to squeeze, I only have to bend my lower legs forward to push EUC. One way of doing this is to get a piece of wood, carve/sand one side to the shape, put the pad over it to fit to the leg shape. Then glue it to the EUC. Another way is to use liquid foam builder uses to make tight insulation for house or something better. It can become a solid foam/rubber in a mold. This way one can make many such pads with ease, possibly become a business.
  39. 2 points
    Things that probably affect the poor cycle count are that they've used high charging current (6A, almost 2C for 3200mAh cells), pretty much the maximum possible 4.2V -> 2.5V cycles, and discharged with continuous high currents (10-30A). Still, it's not exactly stellar when it comes to the cycle lifetime Of course in real use, you don't use that high currents all the time, and the wheels usually force you stop around 3.0V / cell? Compare that to what Battery University says about the usual cycle lifes for the lithium-batteries ( http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries ), although they seem to define 100% depth of discharge as 4.2 -> 3.0V : Figure 1 illustrates the capacity drop of 11 Li-polymer batteries that have been cycled at a Cadex laboratory. The 1,500mAh pouch cells for mobile phones were first charged at a current of 1,500mA (1C) to 4.20V/cell and then allowed to saturate to 0.05C (75mA) as part of the full charge saturation. The batteries were then discharged at 1,500mA to 3.0V/cell, and the cycle was repeated. The expected capacity loss of Li-ion batteries was uniform over the delivered 250 cycles and the batteries performed as expected. Figure 1: Capacity drop as part of cycling. Eleven new Li-ion were tested on a Cadex C7400 battery analyzer. All packs started at a capacity of 88–94% and decreased to 73–84% after 250 full discharge cycles. The 1500mAh pouch packs are used in mobile phones. Courtesy of Cadex Depth of discharge Discharge cycles (NMC / LiPO4) Table 2: Cycle life as a function of depth of discharge. A partial discharge reduces stress and prolongs battery life, so does a partial charge. Elevated temperature and high currents also affect cycle life. Note: 100% DoD is a full cycle; 10% is very brief. Cycling in mid-state-of-charge would have best longevity. 100% DoD ~300 / 600 80% DoD ~400 / 900 60% DoD ~600 / 1,500 40% DoD ~1,500 / 3,000 20% DoD ~1,500 / 9,000 10% DoD ~10,000 / 15,000 Charge level (V/cell) Discharge cycles Available stored energy Table 4: Discharge cycles and capacity as a function of charge voltage limit. Every 0.10V drop below 4.20V/cell doubles the cycle but holds less capacity. Raising the voltage above 4.20V/cell would shorten the life. Guideline: Every 70mV drop in charge voltage lowers the usable capacity by about 10%. Note: Partial charging negates the benefit of Li-ion in terms of high specific energy. [4.30] [150–250] [110–115%] 4.25 200–350 105–110% 4.20 300–500 100% 4.15 400–700 90–95% 4.10 600–1,000 85–90% 4.05 850–1,500 80–85% 4.00 1,200–2,000 70–75% 3.90 2,400–4,000 60–65% 3.80 See note 35–40% 3.70 See note 30% and less
  40. 2 points
    Amazing story! Thanks! Just a thought...it would be a great to send the Sheriff's Department involved a small token of appreciation for the rescue. It will not only make great PR for the EUC community but also will let the sheriffs department know that they are greatly appreciated for all of their heroic efforts!
  41. 2 points
    Yep, ideally you should have an idea for how to get out if your wheel breaks down at any point of your route, or you fall and break a leg/bump your head hard/etc at any point. Unfortunately, strictly this might mean not doing some rides you'd do otherwise, which isn't exactly a solution either.
  42. 2 points
    Bleibt er. Das ist mal sicher!
  43. 2 points
    Thanks for the thoughtful comments @Hunka Hunka Burning Love There were lots of lessons to be learned here plus a little bad luck. I really think that if I had taken my ACM (which was in my truck at the time ) the ride would have been successful. Sometimes it hard to super prepare for a ride that's anticipated tp only take a few hours. We took a few breaks, but I'm used to riding for hours. Lots to be done in hindsight, the biggest one being to Take The Damn ACM next time A trolley in the front would certainly have helped, but it actually makes steering more difficult. It's one thing to be riding on a paved surface, but try steering between ruts, loose gravel, and chucks of rock while pressing on a trolley handle.
  44. 2 points
    Same here. For me, left turns were much easier in the beginning. I also wondered why that is and what I do different during a right vs. a left turn. Eventually, I found out that I didn't really look into the direction I wanted to go when doing a right turn. This lack of really facing the way I wanted the wheel to go caused the problems for me. In my mind, I figured a right turn, but my body was not acting like it so the wheel was not doing what I wanted either. The feeling that the wheel would not want to follow me made me act even less confident when entering the turn, so this was like a circle of action and reaction I had to break through. Once I started to concentrate on facing the direction I wanted to go first and let the body and wheel follow automatically, things became much easier. I also used the same technique later when I practiced 180 degree spot turns. I started to practice them relatively early since I consider this maneuver essential for safe riding. It comes in handy when one needs to turn around in a confined space. Again, I had problems to do the full 180 degrees at the beginning when trying to do a right turn and again it helped to first turn around and face the desired target direction before actually executing the move with the lower body. Another good way to gain more confidence and even out the left/right preference is to go slow on a straight path and sway left and right evenly, just like one would do when skiing.
  45. 2 points
    An deiner Stelle würde ich mich zu dem Vorfall zunächst überhaupt nicht äußern. Die Beweislast liegt liegt bei der Gegenseite und die Polizei kann dir erstmal gar nix, das kann nur der Staatsanwalt und der weiß von dem Vorfall noch nix.
  46. 2 points
    For a long time left turns were easier for me. I don't mean 90 degree turns. I am referring to tight turns or U-turns. I could turn much tighter and easier left vs. right. After maybe 6 months my skills equalized, and I could turn well either left or right.
  47. 2 points
    This kind of normal in the beginner stage that turning one way works better than the other way. At least it was true for me and few other friends. The same happens with the learning process to ride backwards - doing figure 8's - left turns are not yet fluent in my case..
  48. 2 points
    I think Rockwheel GT16 & Gotway MSuperV3, ACM and maybe Monster use IRFP4110 or IRFB4110. Might be used in other higher voltage wheels also?. The difference between the P- and B-models is that the P-model uses a more heavy-duty TO-247 -package, while the B-model has the TO-220, other than that they should be pretty much the same. http://www.infineon.com/dgdl/irfp4110pbf.pdf?fileId=5546d462533600a4015356290ec51ffe http://www.infineon.com/dgdl/irfb4110pbf.pdf?fileId=5546d462533600a401535615a9571e0b
  49. 2 points
    Nope, Sorry! i have a 820wh pack made of 3500mah cells, and a 340wh pack made of 2900 cells... These are connected in parallel, and because of this parallel Connection they "equalize" themself all the time...that also happens while charging. That is not stressfull at all for the packs....not while charging and not while working. You can even buy such combinations in a new wheel....
  50. 2 points
    that all makes sense to me the best comment you made above, which resonates loudly with me: "And personally, owning multiple wheels, I wouldn't want all my wheels to be spec'd for the same purpose." that is exactly right... i rode motorcycles for almost 40 years and never had less than 2 in the garage at any one time... so, i know exactly what you mean about that perhaps the V8 is the best for me now and if i do start riding longer distances i'll get the KS-16 or equivalent then again, thanks for the advice. i really appreciate it