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Showing content with the highest reputation since 11/08/2018 in all areas

  1. 35 points
    This is the information we have so far: The Wheel had 7000km, in 9 months, when it was sent in for repair in late November It had sustained multiple crashes (David had written this in an earlier communication), destroyed inner-shell, chew-up motor wires, which also destroyed the controller; it was a unique specimen of a damaged Wheel. We have a good documentary trail for this repair. When it was sent back out, everything was changed except the battery pack. There was no visual indication, or other evidence that anything was wrong with the pack at that time. Assuming that it had done similar mileage over the intervening 5 months, it had then clocked up a further 4000+ km; possible subsequent crash damage? Quite probably. He had been using only the standard 2A charger with the Wheel, he has also confirmed it was not charging at the time it lit up. His therapist is another first-hand eye-witness account who can corroborate what exactly happened at the time. I will be contacting both the therapist & the NY Fire Department to assist in the investigation. At this moment, it's not clear what evidence is recoverable from the site. If one had to speculate into causation, then based on what we know from the V10F affair, if water does permeate into the cells, accelerated corrosion will cause a short between the electrodes, creating a runaway cell thermal chain reaction. Understandably David is in a state of shock & is angry, replacing the Wheel is small beans; what is important to me, is that we have a clearer picture on causation, so a similar event does not happen again. As bad as the situation is, it might have been a whole lot worse!
  2. 31 points
    Why I Think The Nikola Is The Best Wheel At This Moment I’ve ridden it about 100-miles since Monday. I’ve taken on my first mountain test (picture above), climbing 5100-feet to ~11,000-feet. I’ve ridden it on tough rocky trails which demonstrated to me that it has superb low speed power (torque). First, if you have a MSX, KS18XL, etc., I’m not saying to necessarily run out and buy one. My commentary is for those of you who want to move up and have been torn as to which wheel to get. You can now safely skip the MSX, KS18XL, etc. The tire. It’s huge like the MSX. It’s wonderful like the MSX for dealing with crappy trails, roads, etc. But it’s a little bit smaller so you get better handling like a 16-inch wheel. I think this is the perfect size, between 16 & 18 inches. The tire is the main reason I say skip the KS18XL. The shell. It looks big (wide) but it’s an optical illusion because of the handle. But the shell actually has a nice taper away from the legs, unlike the MSX (which is more boxy). So it’s actually very comfy to ride and took me zero adjustment period like the Tesla, MSX, etc. The pedals. They don’t have the large dihedral angle like the MSX. Just your typical semi-flat angle. And they are huge. I did ride it through some snow (11,000-ft) and the ‘plastic grip tape’ does suck - slippery when wet 🙁 However, because your feet are lower compared to the MSX and the top of the shell isn’t ‘digging’ into your upper leg, The Nikola rides and handles like a dream. I don’t know of course until I ride one, but the 16X shell looks boxy like the MSX, where it hits your leg. Time will tell. Based on my rugged trail riding with the Nikola, it exhibits superb low speed power to slowly climb up and over very large rocks, etc. Going downhill also feels very secure. I have lots of wheels that I will continue to use for variety, etc., But I think The Nikola is now my wheel of choice for mountains, trails, long group rides, just about everything. And for you speed freaks, just buy the 100-volt version. Yes, there are negatives, but where it really counts (riding), The Nikola rules IMHO On a side note, I have now retired my ACM as the best all purpose wheel.
  3. 29 points
    As the guy who placed the first order for an 84V Nikola from @Jason McNeil and was riding one from the first batch, I was concerned when @Marty Backe reported the burnout of his control board. After seeing the pictures I parked the wheel until I could find the time to tear it down and inspect the control board (good to have other wheels to ride ). A long career in electronics design and manufacturing made me suspect that this was an assembly "innovation" not a one-off quality slip. Before disassembly my Nikola was riding flawlessly showing no signs of a problem. (By the way this wheel is WONDERFUL!) I had only put about 90 miles on the wheel before parking it. My rides were local rides on paved roads with rolling hills and max speeds of about 26 mph (42 kph). So... not much stress on this wheel. I have attached a picture of my control board that shows glue residue on the MOSFETs but no apparent thermal damage to the board or MOSFETs. As previously commented in this thread the presence of a substance that is a very efficient thermal INSULATOR on the MOSFET heat transfer surface is a big problem. I will be rebuilding the wheel on Monday after correcting the defect and bringing the thermal management up to what I consider an acceptable level. I will post a video of the rebuild for anyone interested in a DIY solution. So far when anyone has looked they found glue. Just another data point...
  4. 28 points
    News Directly From Gotway Gotway has reached out to me, acknowledging that they have seen my video and that they want to replace my control board. But here's the real kicker, and should be of interest to many. After telling me that a new board will be sent to me, on a separate line is this, "With big MOSFETs" So it appears that Gotway does have a new 84-volt control board design with what I assume is the TO-247 MOSFETs. Very exciting. They've heard us
  5. 26 points
    Too soon? Naw, it can never be too soon! Tattoo idea:
  6. 25 points
    I was on my second 22-mile Tesla range test of the day (video tomorrow) when I ran into a divot in the path. In hindsight it seems like what happened to @Rehab1 just happened to me. I had checked my speed (via the Pebble) just moments before, so I know my speed was ~18-mph. The wheel wobbled for a split-second before I was thrown off. No time to take even a single partial step. BAM! I was immediately hitting the cement, and damn did it hurt. Took probably a couple of minutes before I could ever so slowly raise myself. Everything below my waist was a non-issue (thank you kneepads). My wrists are great (thank you Flexmeters). Unfortunately I have not been wearing elbow pads for a long time, thinking they don't really come into play much. Was I wrong. My leather jacket is toast (or at least now it's a dedicated riding jacket). As the picture below shows, my elbows is trashed. Tore some good amount of skin from my fingers. The helmet did it's job (see the heavy scratching. My riding glasses tore a bit of skin around my nose. But my right shoulder took a major impact. I'm hoping nothing is broken (no sharp pains), but it's swollen now and I don't have great movement. I'll add some additional thoughts later, but typing with one hand is a pain in the butt. Somehow the Pebble watch got a good scraping
  7. 24 points
    I have been busy over the last few days exploring the MOSFET thermal coupling issue on the Nikola. I put together a two part video that describes the current situation with the Nikolas and what I saw when inspecting my control board. It also documents a number of informal experiments that I did to test various thermal solutions using the Nikola heat sink, thermal pads and other thermal coupling solutions. The first video is available now and I should have the other done tomorrow that describes what seems to be a significant improvement over Gotway's standard assembly technique. Of course there may not actually be a need for better thermal performance and the bad units so far may have just been overzealous application of glue. I hope that these videos are useful to those of you that are considering your options on this issue.
  8. 23 points
    I made a raw First Impressions video as I introduced myself to the Nikola
  9. 23 points
    Here is the second part of my video discussing the Gotway Nikola control board inspection and rebuild. This includes one more lab test and a detailed reassembly using thermal paste coupled with electrical insulation techniques. @Nils nailed it; I ended up publishing the director's cut. Most importantly, now that I have finished documenting this thermal issue and its solutions... I HAVE MY NIKOLA BACK.
  10. 23 points
    Hey guys, Another shameless promotion of my first ride with the 17" Gotway Nikola prototype!
  11. 23 points
    Went out for a night ride the day before yesterday. I've become very fond of riding at night, when the city is completely deserted. It's nice to be able to focus on my riding and on progressively taming the 18XL. I still struggle a bit with things like accelerating on wide curves (large roundabouts, for example), and get speed wobbles, wobbles when accelerating hard, and when braking (except power braking). I was out for a couple of hours, mostly practising hard acceleration, braking, carving and slaloming: I'm really starting to enjoy having to put my weight into it, it's very different from the V8, which I can just effortlessly "flick" from side to side. Also did some off-roading, which was great fun, as the paths I took are usually plagued with people walking their dogs, forcing me to limit my speed drastically. T'was fun to push the envelop and get high on the adrenaline Sidenote: @Marty Backe, I'm following your advice and using a flashlight for night-riding: the 18XL has a great headlight, but when accelerating, braking or on pitch black trails, it isn't enough. The flashlight works like a charm, and is a much simpler solution than the DIY inventions I tried to attach a bicycle light to the wheel or my helmet. I initially thought it would be tedious to be holding the flashlight all the time, but have grown used to it, and can easily turn it on or off depending on visibility, resting my arm. It also comes in handy when approaching an intersection: I put it on strobe mode to give drivers plenty of notice of my impending arrival before we cross paths, and so far, I'd say it's prevented several mishaps with cars ( @Smoother can attest to the fact those don't tend to end well...) Anyway, before I go off on another tangent, mid-ride I took a break, and realised I could have unlocked the max. speed to 50 km/h several weeks ago. So, I unlocked it (had to try 3 different versions of the KS app...but that's a different story) and started leaving my "speed comfort zone" so I can gradually overcome the wobbles (they tend to start at about 35 km/h). I noticed that I instinctively grip the wheel when accelerating hard and when I reach a certain speed, so I worked on relaxing my stance. Had a few close calls (the kind of nasty wobbles that make you consider bailing), but managed to control them. Then, on the last stretch before getting home, I pushed myself one last time, and....I was managing! Faster and faster, no wobbles, complete control of the wheel, feeling confident and....suddenly I'm airborne and sliding along the pavement. I was so focused on my riding and maintaining control of the wheel that I didn't even see the speed bump 100m (330 ft) from my house, which I ride past at least twice a day...I checked WheelLog, and since most the ride home was either off-road or accelerate-wobble-slow down, the trip's top speed (43,8 km/h) was, beyond a doubt, the speed I was going when I saluted the pavement. It happened so fast I didn't even have time to think. I landed on my right side, and based on the scrape marks on my elbow guards (and lack thereof on my wrist guard), it appears my right wrist didn't even touch the ground and all my weight landed on my elbow (perfect recipe for a nasty shoulder injury). I'm glad I was wearing sturdy skateboard-style protections and not something like G-Form Pro-X's under my clothes, 'cause even with the skid plate and thick padding, the ol' elbow was sore for a while. Aside from that, I had some tingling in my left fingers, which scraped against the pavement (might consider getting some leather gloves...don't fancy road-rash...) and a nasty hit on my lateral malleolus (bottom of the fibula). An odd place to take a hit...but a good argument for wearing high mountain boots when riding; loosely laced, to not hinder ankle movement, they do provide protection for a part of the body I'd never even considered might be affected in an EUC crash. I rode away from the crash a bit shaken and with tingling fingers, but that's about it. It was the next day when I found myself limping and with a fairly sore shoulder (not a nice feeling when you've already dislocated that shoulder twice in the past). Gearing up saved the day. Inspecting my gear later, my helmet doesn't have a single scratch, but if my head had hit the ground, it would have been from the ear downward, so anything but a full-face helmet would have been as good as nothing at all. Looks like my backpack absorbed part of the hit too, as there's a tear on the side (if it hadn't been for the backpack, that would have been my side scraping against the asphalt). Am no longer limping and my shoulder is only slightly sore, so I consider myself pretty lucky (I fell in a straight line; I could have landed on the curb, slid into a parked car, etc.). The 18XL got a couple of ugly scars, and I ripped the side pad in three different places (almost pulled it off entirely). The factory adhesive is strong stuff, just pressed on the pad for a few seconds and it stayed in place, so I reckon I'll order a replacement but leave it as is until it's beyond recovery. I can't help but remember some advice given by @Mono, I think it was, on inattention being one of the no. 1 causes of EUC crashes. I was almost home (which is when we tend to pay less attention), the streets were deserted, there were no pedestrians, cars, dogs or other "mobile hazards", and due to excess focus on keeping the wheel stable at speed, I wasn't paying enough attention to the road in front of me. In retrospect, I'm glad this happened late at night and the obstacle was a speed bump and not a person (although I wouldn't have pushed my limits like that in any other circumstance; then again...you never really know when/where someone might jump out in front of you...) On the other hand, since I moved recently, it took me a a while to locate and unbox my protective gear, so for a over a week, I'd been running errands on the wheel, on a daily basis, with no protections at all. Granted, I was extra cautious and didn't take any risks, but accidents can happen when you least expect it so...no more of that nonsense. If it hadn't been for protective gear, this would have been a nasty fall (although another small lesson I've learned is that no matter how much protection one wears, there's always going to be some part of the body that's unprotected, so I guess the risk of accidents and injuries is something one just has to accept the moment he hops on a one-wheeled fracture machine) Over and out
  12. 23 points
    I'm back with part 2 of my comparison review of the Gotway MSX vs Kingsong 18XL! Took them out to the park to do some off-roading. These things are tough...
  13. 22 points
    17 inches650 wh / 84 V / NCR18650 PF1300 wh / 84 V / NCR18650 PF1600 wh / 84 V / NCR18650 GA Fotos on spoiler.
  14. 22 points
    Last updated: 13 May 2019 Dear fellow riders, as some of you may already know, I'm the guy responsible for latest WheelLog development This happened, however, during the development of the application to record the route together with the wheel parameters. This application (website) is now publicly and freely available to any of you here - https://euc.world - I named it "World of electric unicycles" I have chosen WheelLog as a base app that will source location & wheel data. I added some features that are very useful during your ride. In particular voice announcements and alarms. Really, you should try speed alerts! Wind noise will no longer be an issue to hear that you exceeded your preset speed. I also added other languages, thanks to @koto , @ArqFG, @andress, @George Iliev, @Lefteris and @fabio70mi. Currently WheelLog supports English, Polish, French, Spanish, Czech, Bulgarian, Greek and Italian languages. By the way, it turned out that more features could be added and improved, and that's how I - slightly unintentionally - became current WheelLog developer WORLD OF ELECTRIC UNICYCLES - DOCUMENT AND SHARE YOUR EUC RIDES Now the https://euc.world service is working quite good, so it's time to announce it's availability for the whole EUC community. Initially I've made it for myself, but soon realized that it may be very useful for other riders. It's my hobby project and it's completely free. It allows you to record your rides including your wheel live data. By default, saved routes are not visible to others. You can also share them with others by sending them a link. You can also make some routes available to everyone, so they will be visible on the main page. Euc.world is a great and free alternative to Endomondo or Strava, as it allows you to document your rides along with detailed wheel telemetry (wheel speed, battery charge, voltage, current, power etc.). You don't need WheelLog to be connected with your wheel to record your rides. In this case wheel data won't be recorded along your track - that's the only limitation. So if your wheel isn't supported yet, you can still map your rides. You can even add photos to your ride. I'll be happy to read your opinions, feedback and feature requests. Of course this website is still under development and now I'm working hard on wheel data visualisation. I think it will be finally working near the end of this week. Currently, wheel speed (black thin line) is overlayed on lcoation (GPS) speed. King Song users are advised to check if their wheel doesn't inflate the speed For example, KS-18L/XL inflates speed reading by about 20%. With time, I'll add more features and fix any bugs I'll be aware of. HOW TO START USING EUC.WORLD? If you already have installed WheelLog from Google Play store, uninstall it first. Download and install WheelLog from this link - https://euc.world/getwheellog Sing up with https://euc.world to create account and get your API key. Enter your API key into corresponding field in WheelLog live map settings in exact form. Small and large caps matters. Setup other WheelLog options according to your preferences. Start riding! Last, but not least - don't forget to give me some feedback so I can push this project in right direction. Note - you don't need euc.world account to just use newest WheelLog and benefit from other features. However I encourage you to at least try. If you think that you need some features, just let me know. I struggle to make this service fit EUCists nedds as much as possible. I'd kindly ask you for one thing... If you are going on an interesting route, think about making it visible to everyone. The idea that guided me when I created this website was to show other people interesting places where you can get on an electric unicycle. So if it doesn't affect your privacy, think about recording some routes in public mode. Add interesting photos, let others see the beauty of the places where you ride on one wheel. This is one of ways we can popularize EUCs. We can show that EUC riders are everywhere! And remember - you can also change visibility. Just log to your account, enter the tour you would like to edit and from "Tour" menu select desired visibility. So you can make the tour hidden or reverse - one of your beatutiful private tours make visible to everyone! WHEELLOG'S FUTURE WheelLog is a great application that's worth to maintain and improve. Now as I became a WheelLog active developer, I plan to add support for other wheels. WheelLog is lacking Ninebot support (wheels other than Z6/Z8/Z10). I already added support for Ninebot One S2 and plan to make other Ninebot wheels to be supported by WheelLog and I hope it will be done soon. Of course I also plan to add wheel sother than Ninebot. You can always find latest WheelLog version for download here: https://euc.world/getwheellog It will also be available in Google Play store soon, so installation and updating will be much easier. PLEASE, CONSIDER SUPPORTING MY EFFORTS As I wrote above, I plan to add more wheels (and other devices, like e-scooters etc.) to the WheelLog. I'll also review already supported wheels to check if I could add new features. It's my hobby. It's fun and pleasure so I can spare some limited amounts of my financial resources for WheelLog development and euc.world running, but only to pay for most important expenses. Any support from euc.world and/or WheelLog users will greatly help me with both euc.world and WheelLog development, especially in regard to adding new features and keep this application constantly developed. If you want to learn more, please visit https://euc.world/supportme Thank you in advance!
  15. 22 points
    So I've owned the 18xl for an entire month now. In those 31 days, I've learned a lot about this wheel. The power, distance on a charge, speed, and control are amazing on this wheel. I've already covered 1578km/980miles in the first 31 days. I use this as my primary mode of transportation, so this makes sense. I don't ride trails very often, just ride this to the store, to work, to church, or to meet up with friends. I do go for rides just to go for a ride, as I love the feeling. Distance is great, I can go to work, take an hour lunch, sometimes just riding around for that hour, back to the house that evening and still have a charge to go somewhere else and back home. I'm glad the top speed is 31mph as I'm able to use neighborhood roads and other roads that are not as full as traffic as much as possible to get around. I rarely go slower than 20mph. The last thing I need is cars passing me on a road because I'm holding up traffic. Instead, I can keep up with the normal flow of traffic and safely get to where I need to as if I were a bicycle or another vehicle. The control on this wheel is amazing. I've not had a single crash going fast on this wheel. The only time I've crashed was playing around on a walking trail and going around a muddy curve. The tire is so wide and the wheel is so steady that it just rolls right over any cracks, small potholes and such. Again, I use this on the streets only where I live so I'm not whipping it around, changing lanes or anything of that sort, I'm just riding it as if it were another vehicle in the flow of traffic. It stops quickly if needed, and it does such a good job of keeping you steady on the wheel. The original charger takes forever to charge it. I've plugged it in all night before and still haven't gotten it to a full charge. I'm thankful for the speed charger when I need a quick recharge to go back out. I try to use the original charger whenever possible and only use the speed charger when needed for a fast charge. Hopefully, I will preserve the battery life on this a little more by doing so. The pedals are huge! Which is great because I ride in whatever shoes I have on, wedges, flats, tennis shoes, boots or heels. I don't get as fatigued as I used to on my previous wheel which was a concern for me. I was afraid that the longer times on the wheel would just kill my feet lol. Glad it's not the case. I learned the hard way that you want to set it down with the mudflap up when not using it. The mudflap finally fell off this week. @Jason McNeil do you keep mudflaps in stock for the 18xl? Overall I really LOVE this wheel. I have been considering the Gotway Monster for the extra battery life. I'm not so sure I'll get it now. Maybe wait until KingSong makes an upgrade to an even longer lasting wheel. This wheel is super sturdy and easy to control. So glad I purchased it.
  16. 22 points
    City night ride. Strap on your headphones.
  17. 22 points
    No more rumors. Here's the real thing: https://youtu.be/ZhCCMtfBqSk Also, gotta give a huge thanks to @Jason McNeil from eWheels and Kingsong for allowing me to do a KS16X GIVEAWAY! Someone's going to win a $2000 wheel... TLDW: The Kingsong 16X is one of the best off-roading wheels and makes a solid city commuter. It's street performance is very solid, off-roading is amazing. The only drawback for speed freaks will be the top speed, 45kmh (28mph).
  18. 21 points
    Ok, some words to the rumours of "massive Motor" Problems. There are None! Because of a partly different Motor of the 16X the 5 Pre-Production to the 2 prototypes the wheels had that "oscillation" when going over 40kmh. This is allready fixed by a Firmware update last Weekend! The production of the 16X will, nonetheless, be a Little bit delayed ….and unfortunatly be produced only in Mid July. The reason for this delay is in the massive Feedback, received from the test of the pre-production models and asking for some changes! That are small parts done better for better waterproofing, another pedal angle and other small and very minor details, but also a Hardware-Change on the Motherboard. KingSong wants to deliver a flawless 16X to it's customers, so the extra time added might be annoying...but in the end this is all for our own best!
  19. 21 points
    You're right. It also seems that there is no temperature probe near the radiator or MOSFETs. This is a major design flaw, as PCB temperature where temp probe is apparently located in Nikola, being additionally cooled by the fan located on wrong side, doesn't reflect MOSFET tab or package temperature. This is why @Marty Backe got misleading, very low temperature readings. For example, in KS-18L/XL there is a temperature probe located close to the heatsink and MOSFET that is farthest from the cooling fan. This is why L/XL may be perceived as a "hot running wheel". Nikola wasn't "cold running wheel", it was just a "very hot running wheel with low temp readings". From what I see, PCB design may cause MOSFET source (S) leg to overheat, as there is highest thermal resistance due to small copper pad directly under the MOSFET leg. I don't see the other side, but i assume it's similar so drain (D) legs are also connected using small pad located on an edge of larger copper plane. Another design flaw is to use two TO-220 MOSFET instead of one TO-247. Doubled small package design is prone to many failures. MOSFET leg fracture during bending or PCB assembly will increase leg resistance. Improper soldering or improper PCB design may cause current imbalance, so it wont be divided 50/50 between both transistors. And if one MOSFET will fail, but won't short, second MOSFET failure is a matter of short time, as it takes over full current instead of part of it. As we can see in the photo, it was the case. Failed both MOSFETs on one side of a motor phase half-bridge circuit. Double MOSFET design may work well only if is properly oversided, so each single MOSFET is able to carry maximum current expected to flow in the motor phase circuit. But as failing MOSFET will likely create a short circuit, secondary MOSFET won't be beneficial.
  20. 21 points
    I saw this cool dojo-esque structure on my commute home the other night, and figured I should film some grooving in there...
  21. 21 points
    This was the most beautiful EUC route I have ridden so far. Six electric unicyclists @Marty Backe, @Jrkline "Wheel Whisperer", @Rama Douglas, @mark chanya, @Tanabe, and myself rode 58 miles across the San Gabriel Mountains with a recharge at Mount Baldy, CA. Wheels in attendance were two Gotway 100v Monsters, one Gotway 84v Monster, two Gotway MSX, and a Kingsong 18XL
  22. 21 points
    I know this will come as a surprise to some of you, but I'm burned out on Gotway. Their perpetual sloppiness in manufacturing and non-responsiveness to community feedback has finally convinced me that KingSong is the only way to go from here on out. Fortunately I have the KS14S and KS18XL. I'm going to buy two KS16X's and will outfit one of them with a knobby tire. This will allow be to sell my two ACM2's (what a relief to finally dump these turds). Hoping that 2019 will be the year that KingSong releases a Monster killer, then I can get rid of the Monster too. I'll probably keep my remaining Gotway wheels, mostly to loan out to visiting riders from out of town. Sorry to disappoint my fellow Gotway wheel owners, but I have to be honest to the community.
  23. 21 points
    Hi 👋 🤗 Thank you all so much🙏🏻. I want to say a big Hello from riders from Vladivostok👋 I do not speak English and will use a translator, so I apologize in advance if the translation does not sound very correct🙏🏻🙏🏻🙏🏻Thank you for inviting me. This is unexpected. I am very happy to meet many friends here. When I bought my first wheel, I had a lot of questions. I didn't have anyone to ask. In Vladivostok such monowheels were not. It's great that there is such an opportunity to communicate between people. Thank you very, very much.😊🌸🌺🌼
  24. 20 points
    Just attended the Electric Games in France... Hundreds of riders, well organized, and AMAZING. Here's my video:
  25. 20 points
  26. 20 points
    Overheat Hill Smokes My Nikola I just returned from my mountain stress testing of the Nikola and it utterly failed (nothing like the smell of burnt MOSFETs in the morning). So I owe all you guys an apology for defending Gotway's decision to revert back to the smaller MOSFETs. What can I say? It's still a beautiful wheel, and as you'll see, it does have amazing low-end torque and was running cooler than any other wheel other than the MCM5. But it looks like the electronics aren't up to the task. So if you have a Nikola or are thinking of getting one, don't ride it in tough high-ampere conditions. Note that my 5100-ft climb to 10,500-feet was a non-issue. So I think most riding conditions will be fine. But if you live in San Francisco, etc., be cautious and monitor your power consumption. Video at 10
  27. 20 points
    There is a development update to report; they will be using a new 2200W motor, using a different PWM waveform, to try to match the silent & instant responsiveness of the Gotway controller. Tina says this is not expected to delay the production, currently still on target for next month, however, the demo Wheel is delayed until month's end now.
  28. 19 points
    Another excellent write-up by @EcoDrift (via Google Translate) regarding all the QC issue of recent Ninebot One Z manufacturing (including references to our very own North American superdealer @Jason McNeil ) https://ecodrift.ru/2019/02/12/ninebot-z10-chastaya-polomka/ Ninebot Z10. One of the frequent breakdowns. I tried to collect material on the pre-sale preparation and maintenance of the monowheels. But my attention was attracted by the open Ninebot Z10. He asked what happened to him, but it turned out that this is a sad whole story, which I will tell you today. After the start of sales, Ninebot Z-series monowheels unexpectedly turned out to be leaders in the number of warranty calls. Wheels directly out of the box often do not turn on, as the battery protection works. Our very first wheel didn’t turn on that way. But I came across a wheel with another problem. It clearly looks like a Facebook user (click). The wheel walks back and forth and does not really hold the horizon. I just caught the wheel disassembled: The following problem is visible on the controller: Contacts burned at current sensors: What have two. These current sensors are Hall effect and they are designed for a very high current. Such sensors (designed for high current) were detected only in Ninebot (in Gotway, sensors are connected via current-lowering resistors and have much more modest parameters). Service engineers immediately said that this is a frequent problem of the Z-series. And for example, dragged another Z10, whose contact burned down only on one sensor: You can see that the sensor on the left side feels fine: The guys from the service center tried to restore the burnt track on this wheel. After that, the wheel goes normally, but if it is on it try to drive into a small curb from the spot and everything repeats. The problem can be anywhere, but the simplest thing is to just take a new controller. Rather, the board with the power part: To check how much this “repair” really helps, I decided to check with our American colleague Jason McNeil. He is the owner of the portal eWheels.com and has sold quite a lot of Z-series monowheels. Jason confirmed that it is enough to replace one lower board and the problem does not recur. The same sensors on the new board: The reverse side of the new board (the controller is diluted on an aluminum substrate): So the repair is very simple. Disconnect all wires. Remove the fee: Thermal grease on the old board: We connect new, we connect everything back: And the wheel works great: But I decided to ask Jason about the situation with the Z-series: how often they break and how many of them have a marriage. Jason was very emotional, because from Z10 he decently boiling. Jason wants to sue Ninebot for non-compliance with its obligations and for the poor quality of the Z-series. Marriage was abound. As a percentage, this is at least 20% of all devices sold. The problem of current sensors can lead to melted wires of the phases and even burnout of the controller. And of course, enough battery problems. As a result, Jason's opinion about the Z-series in particular, and Ninebot in general, is just a piece of garbage. Sheer frustration. For the comfort of users, it remains only to add that the overwhelming majority of problems arise at the start of operation. Approximately the first 50km and a pair of first charge cycles. If the wheel has passed the initial stage, the probability decreases to very low.
  29. 19 points
  30. 19 points
    So, I had planned to open my wheel some time later, but went shopping today for some materials to prepare for later. Having some prerequisites at home it turned out that I couldn't live with the suspense any longer though, so I rolled up my sleeves and opened the wheel up. After a rough fight with silicon I freed up the board enough so that I could somewhat inspect the MOSFETs without taking apart the board. Everything looked clean, and I couldn't see any traces of glue anywhere. My wheel has performed well even when I've purposefully loaded it, so I already knew it wasn't a lemon, and the first inspection seemed to reflect this. However, you can't really see that much from the outside though, and there could still be glue hiding under the thermal pads which would be impossible to determine from the outside. Hence I proceeded with disconnecting the board and after besting the silicon foe again I disassembled it (a pox on anyone putting silicon in screw heads!) . I suck at documenting stuff well apparently but here's a picture of my MOSFETs with the inner row thermal pad removed: It was completely clean for all practical purposes. Only the MOSFET to the left had some glue/stuff on it's sides, but nothing covering the pad. The two MOSFETs to the right might look a bit weird in the photo, but those are discolorations and not anything do to with any adhesive. While not shown in the photo, the outer row of MOSFETs was completely clean as well. I fitted new thermal pads and reassembled the board, which was finicky but not super hard (heat sink at the bottom, place thermal pads with ready made holes in their correct positions, fit the board looking through the MOSFET screw holes, keep pressure on the board and insert screws for the middle row. The outer thermal pad can be adjusted if needed easily enough). In conclusion, not all Nikola boards are glued it would seem. I have a very early version for what it's worth, product code indicates it was assembled on April the 2nd. This would seem to lend some credibility to the theory that only certain wheels have been assembled badly. I believe that my wheel is a very early one, and that for instance @Marty Backe's is a later one. If so, that would suggest that it's not a case of any early process being improved on shortly after but crappy assembly for certain wheels. Anyway, after reassembling the wheel I went for a ride, and a great one it was! My Nikola is now open for business again!
  31. 19 points
    Apologies for the late attendance to the party. Since receiving a 2nd board failure (this case was different, it was powered on from a stand still & didn't respond), including Marty's, within two weeks of shipping out the first batch of Nikolas, I've reached out to Linnea on Thursday to try to come up with an action plan to see what options are available to greatly reduce/eliminate the risk of these MOSFET thermal overload events. The evidence from both of these failures has marked similarity in outcome (see below), where this glue may be acting as a thermal barrier, not helped by the absence of thermal paste on the underside of the metal heat transfer surface. One option being explored, is to recall the boards. remove this glue, & apply the thermal paste. To date Gotway have shipped 600 units; they say they have not received reports from other regions of this failure—it's likely more will trickle in in time. Putting out an official recall is not something to be taken lightly; in their defense, they're probably looking for a few other reports, before taking this step. Gotway have a lot of experience with building high power motor vehicles; they had gone through several rough patches, particularly with reliability of earlier generation boards, with the weaker MOSFETS, but at least then they were pretty consistent with applying liberal quantities of thermal paste to this underside. It was baffling to me why they would go back to an inferior TO22x FET package AND now we learn about the lack of thermal paste. From my experience, such oversights are usually not the result of penny-pinching, but execution on the production line, where the factory needs a ruthless eagle-eyed floor manager, to see that every step of assembly is done by the book. The silver-lining to all this, is that an early finding in the production cycle is a necessary facet to a small-scale non-ISO production facility, where the manufacturer's financial pain of having to deal with a crisis, means that they will be imbued with a sense that this situation must never occur again. For all current Nikola owners, please hang in there, we should have an action plan in the next few days. EDIT: To anticipate questions on the 100V Nikolas, they are using the TO247 MOSFET package, the first production of these special edition 1845Wh variants is still underway, there is assurance that in light of this episode, they will getting the thermal paste treatment! 
  32. 19 points
    Apologies for the late attendance to the party. Since receiving a 2nd board failure (this case was different, it was powered on from a stand still & didn't respond), including Marty's, within two weeks of shipping out the first batch of Nikolas, I've reached out to Linnea on Thursday to try to come up with an action plan to see what options are available to greatly reduce/eliminate the risk of these MOSFET thermal overload events. The evidence from both of these failures has marked similarity in outcome (see below), where this glue may be acting as a thermal barrier, not helped by the absence of thermal paste on the underside of the metal heat transfer surface. One option being explored, is to recall the boards. remove this glue, & apply the thermal paste. To date Gotway have shipped 600 units; they say they have not received reports from other regions of this failure—it's likely more will trickle in in time. Putting out an official recall is not something to be taken lightly; in their defense, they're probably looking for a few other reports, before taking this step. Gotway have a lot of experience with building high power motor vehicles; they had gone through several rough patches, particularly with reliability of earlier generation boards, with the weaker MOSFETS, but at least then they were pretty consistent with applying liberal quantities of thermal paste to this underside. It was baffling to me why they would go back to an inferior TO22x FET package AND now we learn about the lack of thermal paste. From my experience, such oversights are usually not the result of penny-pinching, but execution on the production line, where the factory needs a ruthless eagle-eyed floor manager, to see that every step of assembly is done by the book. The silver-lining to all this, is that an early finding in the production cycle is a necessary facet to a small-scale non-ISO production facility, where the manufacturer's financial pain of having to deal with a crisis, means that they will be imbued with a sense that this situation must never occur again. For all current Nikola owners, please hang in there, we should have an action plan in the next few days. EDIT: To anticipate questions on the 100V Nikolas, they are using the TO247 MOSFET package. The first production of these special edition 1845Wh variants is still underway, so there is assurance that in light of this episode, they will getting the thermal paste treatment!
  33. 19 points
    Good guess! But no. The champion of the 2019 Electric Unicycle Grand Prix held in Oakland, Calif. on Saturday is Freeman Murray, riding with unmatched skill and speed on a Kingsong 18L. Freeman was able to consistently carry the most speed through the slalom and was the fastest rider all day. We ran heats of five laps around the course, expertly and generously organized by @Kai Sosceles, to whom we all owe a debt of gratitude. Freeman ran a 2:57.76 in the five-racer final to take home the title and a $250 cash prize. Little old me had to push my MSuperX as far as I could to finish less than three seconds behind Freeman in second place with a time of 3:00.65. It was a pleasure to buy a post-race round for some of my fellow racers with the $150 I took home for second. Third place (a Kingsong 18XL) got $100 and was just two seconds behind me, so I needed every bit of everything I had. The winning and prizes was very cool, but the most important part of Saturday was 1) it was 100-percent safe, with zero injuries or serious crashes and 2) amazing fun for all. All riders rode within the capabilities of themselves and their equipment, and everybody shared a special moment highlighting all the best things about our weird little hobby. I'll put up a few videos here, I'm sure there will be more to come as everyone processes their work. But I'll share my favorite quick story from the whole event: About 90 minutes in, during a break in the racing, an East Bay Municipal Park District police officer pulls into the parking lot. Walks up to us, friendly but serious. Kai explains what we were up to, and then the officer tells us that electric vehicles are not allowed on part of our course (the back stretch, a shared bike path). He told us he was going to check some regulations in his car, so we waited. As we wait, another officer pulls up, and we're thinking we're shut down for sure. After a few minutes of discussion, the officer walks back over. He tells us: "So, we had some busybody, umm, citizen, call in and report you guys, because they weren't having as much fun as you were. And, we're going to leave now." And they did! He smiled, went back to his car, and they drove off. We finished the final heats after the tacit approval of some very cool cops! Final heat, raw 360-degree video:
  34. 19 points
    Our CG animator just completed this disassembly clip for the 18XL. Intention is to serve a couple different purposes, showing how it's put together, for ordering parts, also I think it looks rather cool . The number next to the part descriptions will be the SKU/part number codes.
  35. 19 points
    Im from Russia, where vodka, bears and good english everywhere
  36. 19 points
    @Liamfind, it's always great to see some involvement at the Manufacturer level. Before moving onto a new product, I think Inmotion should first focus on improving the V10/V10F to make it a Best-of-Class product that it deserves; it's 95% of the way there for hardware, but needs some inexpensive tweaks, that your Customers have been requesting for months. Both King Song & Gotway have been pretty good with Continual Model Improvement, but we haven't seen much of this practice at Inmotion. Handle Play: the external handle mount is fine, keeps the internal space available for the ~1kWh battery, but the 5cm of play in the handle, going all the way back to the V5F days (more than 2 years ago), is completely necessary & is a real problem with a 20kg Wheel. The folding hinge joint needs to be retooled with smaller tolerances to eliminate this play. Reducing Speed Throttle at <70% SOC: a battery of ~1kWh provides plenty of surplus power all the way down to 3.2-3.3v, a chief compliant among V10 Customers is that while it's great to have 40kph cruising speed, this performance is available for only 30% of the total capacity of the pack. It seems the Engineers have not taken into account the capabilities of the hardware in the V10/F for programming the throttling levels. On machines like the Gotway Tesla, other manufacturers have demonstrated that it is possible to provide Customers with longer high speed cruising duration, without sacrificing safety. Controller Performance: Gotway have introduced the HY MOSFETS with the TO-247 packaging, which has a huge heatsink. The empirical evidence from veteran Riders, like @Marty Backe, is that these boards are almost completely immune to over-heating & have an incredibly high reliability rate. The V10/F is one of the most susceptible machines to overheating, this greatly limits it's utility for hill climbing & operation in environments with high ambient temperatures. Waterproofing: no doubt you're aware of the deficiencies in this area on the early V10Fs & the toll it took to the reputation of the product & cost to the distributors performing the recall. Any details you can share on what improvements have been made at both the organizational level & technical changes to prevent this from ever occurring again would help to restore some trust in the Company. Sensible Spare Parts Pricing: as a Dealer, charging nearly $200 for a replacement controller makes it extremely difficult to offer onsite spare parts service for Customers. While many of the parts prices are inline with what other suppliers charge, there needs to be some rationalization for certain parts.
  37. 18 points
    Another epic ride. Almost 11-hours and 50-miles before we got back to the cars. We were borderline lost in the mountains, descending 3000 feet into a canyon where the only way out was to ride & walk 6+ miles on a rough trail that required traversing a river more then 30 times, sometimes over our knees. Towards the end, when this picture was taken, we were starting to go crazy with the water crossings, so why not get our group picture standing in the river From the left: @Dzlchef, me, @Rama Douglas, and @Jrkline "Wheel Whisperer"
  38. 18 points
    OK. Hats off to @eddiemoy. I believe he has identified to root cause of my failure - crappy Gotway workmanship (or whoever builds their boards - do we know?). I took a high resolution photograph (click if you want to access the full-res version) of the MOSFETs in question and the thermal barrier. You can clearly see a bit of the plastic still stuck on the sheet. I closely inspected both thermal sheets and they look clean except for this section. So whomever assembled this board, nonchalantly pealed off the backing material and shrugged their shoulders when some of it tore and stuck to the thermal sheet. It's so obvious now. Those three MOSFETs could not dissipate the heat and blew. This makes me feel better that probably most of the Nilola boards are OK, but unfortunately it's now a bit of a roll-of-the-dice if a Nikola owner gets a crap board. And it's basically impossible to inspect the board without destroying it to gain access If this was not a second rate Chinese company, they would do a recall out of an abundance of caution and replace the boards with fully inspected ones. But we know that's not going to happen. I'm tagging @Jason McNeil so that he sees the root cause. Thanks again @eddiemoy, @Rehab1 and @Jon Stern
  39. 18 points
    My wife asked me to do some yard work. Guess she thought I couldn't ride and clean the drive at the same time.
  40. 18 points
    Good news for electric unicycles comes from Germany: Micromobility has enormous future potential, believes Transport Minister Andreas Scheuer. Like bicycles, e-scooters should only be treated with special regulations. They can be used on cycle paths; if they are missing, they can also be used on the road. The scooters need an insurance sticker. A helmet does not have to be used, nor does a driving licence. At the same time, the Minister wants to introduce an exemption regulation for equipment without a handlebar. For example, self-propelled skateboards, called hoverboards, will be allowed to be used on public roads in the first half of 2019.
  41. 18 points
    Brandon's (6 years old) instructional on how to do tricks on an EUC. Also, we just realized Coronado Beach in San Diego is an EXCELLENT beach to actually ride on the sand. The hard packed sand part of the beach is SUPER wide.
  42. 18 points
    Hi Guys, Thank you for all the well wishes. It means a lot. You guys can also be very funny - you know who you are. I've had some good laughs this morning. I just got up from a 10-hour recovery sleep My shoulder appears not to have gotten much worse if any from how it was feeling last night. And there is zero bruising although the whole area is swollen. It's Sunday and I don't want to mortgage the house by going to the ER. I'll see how I feel Monday and may go to the doctor. I do weight training every week so my shoulders/arms have a fair amount of muscle and I think that really helped to survive the crash. Based on the (assisted) range of motion that I have, my gut tells me that I haven't damaged anything, but I've certainly stretched all kinds of stuff My arm is basically useless, but I can type and stuff once I've lifted my hand to the proper spot with my other arm. This crash is the worst I've ever experienced. It feels like my first true faceplant since there was zero sense of running anything off. All my other crashes have involved a tiny bit of stumbling running before hitting the ground. This was an instant rotation to the cement. It really scares you into not wanting to ride fast. I now know that ~20-mph is kind of survivable. But God knows what would happen at 25-mph, or greater. I will always wear elbow pads in the future since I now have empirical evidence that they do play an important role during a faceplant. Maybe not in other crashes, but faceplants YES. Knee pads are critical. My wristguards saved my hands/wrists big time. I'm so glad I never ride, regardless the distance or type of ride, without my wristguards. Although I bled a lot, after cleaning up, I only have one bandage on each hand, covering a small area. Ignoring the possible damage that could have occurred without the guards, I would have had incredible amounts of roadrash. As I mentioned in a different thread, my wife showed in interest in learning to ride, manly to be able to spend a little more time with me. She had no true passion to learn. I'm ending that experiment and she's OK with it. The thing is, I can take risks, but it scares me to think what would happen to her during a fall. She's older than me (65) and not physically fit. We'll just take more walks together I wasn't filming during the crash, but was carrying the 9-foot selfie-stick. I found it about 20-feet in front of me. Miraculously, the undamaged lens did not hit the ground. But the case has lots of new deep scratches everywhere. This camera has taken a beating No @Rehab1, I don't think the asymmetry of carrying the stick helped me at all. I think the body asymmetry stance still helps in a running type crash, but I now know from personal experience that an actual faceplant involves no running. It's a simple rotation to the ground. My Tesla survived the crash like a champ. It rolled down a 20-foot embankment and sat there beeping at me (was it laughing at me? ). I rode it 10-miles home. In broad strokes, our wheels are amazing machines. Very robust. Sorry not to personally address all of your comments, but I've read everything and have enjoyed your sense of humor. Makes me happy.
  43. 17 points
    Happy day yesterday as my Nikola arrived! I didn't have any time then but have now spent the morning acquainting myself with the wheel and trying out, so below follow some first impressions. Note that I've previously owned a KS16 and a V10F, so that's primarily what I'm comparing against, although I've done shorter test rides on other wheels as well. Notably, it's also my first Gotway. So, first off, the box comes with the wheel, the charger, a brief safety pamphlet and two separate side pads. First thought after pulling the wheel out is, wow, that's huge! Much larger than the V10F for sure. I put them side to side just to get an understanding of the dimensions, and while the body of the Nikola is slightly higher it's really the width of the wheel I think that gives off the formidable impression. Speaking of width brings me to the Nikola's carrying grip. Since the entire handle is so wide no-one is going to close their hands around it. Instead you lift it with the fingers sunk into the recessed middle of the handle, where the lift sensor is. Works reasonably well, and is certainly not a problem for me at least. Moving on to the scorpion trolley handle: when raised it's a tad too low for me to be completely comfortable. The V10F's similar scorpion handle is better in this regard, but since it's longer it means that it always rests on top of the wheel while the Nikola's handle folds in completely, which arguably looks better. The trolley handle doesn't seem to lock when raised which would have been preferable to me. So, turned the wheel on, and thankfully it just starts up the way it should. I then spent some time wondering why I didn't see the voltage read-out. Turns out the voltage read-out is now sunk into the right side of the wheel, in contrast to the earlier prototypes which had it top/front. Looks good to me. Onwards to the Gotway app. While I typically use wheellog I wanted to get the Gotway app going for full control of the settings (led pattern display, etc.). Downloaded the latest official android app from kebye.com, and.. it's a no-go. Won't even start up. Fruitlessly tried fiddling around with additional permissions for a while, but then gave up and installed the older non-social version of the app uploaded by Marty on the forum. Crappy app as well, but it connects at least. Couldn't find anything in there to control the side lights though so it's disco mode all the way for now. The wheel came with a 90% charge, so all ready to go. First impression of the handling is that wheel really wants to be upright, which I'd attribute to the wide wheel. In comparison to the V10F for instance where I easily can maintain a slight turning angle, with the Nikola it's more like you either really turn and mean it or you don't. As soon as you let up pressure the wheel will right itself. This is not a bad thing in any way, but a noticeable difference from my previous wheels. I guess it's a much less extreme version of what people have reported for the Z10 with it's even wider tire. I experimented briefly with the riding modes, and settled with the intermediate mode for the time being. On the road the wheel handles very well, very stable. I'm not a speed demon, so I didn't push it more than slightly above 40km/h during my ride. I bought the Nikola for the additional range and power, and while the conditions today weren't particularly challenging (18C/64F) I did push it up some inclines without any issues. I'm eagerly anticipating @Marty Backe's overheat hill test, but I certainly don't expect any issues for me (in contrast to the V10F which has overheated for me multiple times). I'm happy with the pedals. I was a little concerned at first coming from the V10F's large comfortable pedals, but the Nikola's pedals seems pretty much the same to me. The angle is nice, and the height as well, with tight turns working out well. Noise-wise it's good, there's some whining going when idling, but the wheel is quiet during rides. Got some comforting content rumbling from the wheel at other times. The wheel build quality (body) seems pretty solid. I managed to get shell to creak when pushing hard against the side, e.g. one-legged riding. Only heard that when pushing against the right side FWIW. I believe I saw someone posting something about Gotway changing some type of foam for the upcoming builds to address this, but I can't remember where I read it. Ended up doing a 29 km ride on some varying surfaces, and came home with 49% battery remaining (starting from 90% earlier). FWIW, I noted that voltage reported by wheellog was lower than the one reported by the voltage read-out on the wheel, whatever the reason for that is. All in all, very happy with the purchase, summer's looking good
  44. 17 points
    ~11,000-feet with the Nikola
  45. 17 points
  46. 17 points
    For those of you who know Brandon, today's his last day of Kindergarten. He rode his MTen3 the 1 mile / 200 foot elevation about 2-3 times a week back and forth for the last three months. The thumbs up is for the fact now summer has started, we're free to ride all day!
  47. 17 points
    Firmware is altered in a way not intended by the manudacturer and especially alters safety features implemented by the manufacturer. Hello everyone, I create this topic to share with you results of my tests with a Z10 whose top speed has been unlocked at 56 km/h thanks to the superb work of @MRN76 and its magnificent APP NINETOOL ! A big thank you to him for this life-changing performance! First of all i'm not crazy and I ride fully equipped with good motocross protection : A Full face Motocross helmet A motorcycle jacket with integrated protection Shin guards Motorcycle gloves And I also have good accessories : A wrist mirror A blinker on the back That being said, let's begin. After 2 days of testing, I enjoy riding in a Z10 even more, which I didn't think was possible because I love riding with this wheel so much, and coming out of an INMOTION V8 it wasn't easy, though. The wheel behaves extremely well at a constant speed of 45km/h, it is a delight to be able to drive at 40-45 without tiltback and no longer have this big speed limit just dropped to 65% of remaining range. For the moment I have not yet exceeded 50 because between 47 and 49, I feel the loss of the feeling of not being able to fall (I think that those who ride in Z10 must understand what I am talking about, because it is not easy to describe as a feeling) Once the 45km/h is reached, you have to lean much further forward to accelerate and I feel that the wheel tends to lean slightly forward instead of staying straight. That said, it may be because of bad tire pressure. So I'm going to test with some different pressures to see if it improves things. Here, for this first recap, I'll post from time to time when I've done some more tests, on battery consumption etc.... Until then, have a good ride, everyone!
  48. 17 points
    And I am excited, but I didn't have anyone to tell who would know what I was talking about, so I thought I'd pop in and say hello and brag about my new present for Spring/Summer 2019. How are all my pals doing?
  49. 17 points
    Hi guys Just wanted to tell a little story of my learning process of riding an EUC. It all started like 3 years ago when i have seen a guy on an EUC, probably was a solowheel or something like that. I was like, what the heck was he flying on. Searched the internet but these things where to expensive for me so i ditched it. Then last year in mid September i saw another guy with that strange thing, started researching and finally bought a used Ninebot One C for 230€. I was a like a little kid in the candy store when that thing arrived. I unboxed the wheel and thought, yes, welcome to the future. Then i started to stand on it in my apartment for half an hour, just to get a feel for it, and i thought its time to go out. I went on an empty parking lot just around the corner and started my thing, and man this was scary, i thought how can people do this. My whole body was shaking like crazy and my arms where going like i was practicing for the next breakdance championship. Like ten minutes later i could ride a few meters and i thought wow and then the shit went down the drain. My sister came around the corner and i was like hey look i can do it... boom, smack, poof, and i smashed on the ground. I wasn’t fast at all, under walking speed, but i smashed down very well right arm straight forward. And of course i had no safety gear on. Ups, that hurt. First i checked my wrist, it hurt but nothing broken, checked my arm and thought ahhh nothing broken, and i continued riding for like two more hours because it was so much fun. The first click i had when i started to force my arms down and kind of relaxed myself, the feeling was so great to just glide along and i was addicted. After two hours of riding i had some good pain on my feet, calves and of course my arm, so i called it a day. When i was in my apartment my arm started really hurting bad, so i thought i might go to to see a doctor tomorrow, which i did the next day. He did an X-ray and my elbow was slightly broken, wrist not broken but it was really painful for about 4 months. He put a casting on for 2 weeks and said dont do anything with that arm for at least 6 weeks, i thought whaaaaaaaaaaaaat. I came back home and looked at the wheel like , then i started to watch YouTube videos from @Duf, @Marty Backe , @eddiemoy and everybody else who’s out there, i had a lot of time. After ten days i couldn’t resist anymore and took the wheel out, still with the casting on my arm. I slowly stared practicing every day, and got better everyday, i bet it looked funny riding around with that casting. After 3 weeks of riding with the Ninebot i thought better sell it and make an upgrade, and i bought the ks16, because i wanted a bit more speed, safety, front and headlight, trolley handle... I bought it from 1radwerkstatt with a 340wh battery for 750€ with the option to upgrade the battery, 1radwerkstatt makes his own batteries with different configured bms. On the Ninebot i was already comfortable but when i jumped on the ks16 it was like to start from scratch, the wobbles and all that good stuff where back , took me a good time to get used to it. This was like in the first week. The next weeks i rode every day and watched YouTube videos like crazy, and after about 400km it started to feel really natural. This is 7 weeks after the video above. Last week i made an upgrade, bought a additional battery and the 18XL pedals. So as you see i had a bit of a struggle but i stood up and whent through it and at the end i am a happy man who can finally ride and have lots of fun. A real big thank you to all the guys who are making videos and to this forum, helped me a lot. And by the way never fell again since.
  50. 17 points
    The first production XL pedals have been made, KS are shipping out the pedals & the first 20x 18XLs by air-freight early next week.
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