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  1. 39 likes
    Last updated: 17 January 2020 Dear fellow riders, as some of you may already know, I'm the guy responsible for EUC World application and online service Whole story began at the beginning of 2019 when I forked WheelLog sources and decided to add some features I missed. One of such features was possibility to track my rides in similar way Strava, Endomondo or Wikiloc works, but with complete wheel telemetry. You know, I wanted to cross my country from northern to southern border, allow my friends to watch me live on the map and show the rest of world that EUCs are not toys Of course even vastly improved WheelLog was not enough, as I needed some online service to save and share my tours with others. I created it and named "World of electric unicycles" and in fact it soon became a real world of electric unicycles - just take a look at the main map I have chosen WheelLog sources as a foundation and initially I just wanted to add features that were useful during my riding. In particular voice announcements and alarms. Really, you should try speed alerts with Bluetooth earphones or helmet comm set! Wind noise will no longer be an issue to hear that you exceeded your preset speed, EUC is near to overheating or just overloaded and faceplant may be iminent. If you love long rides, you'll benefit from periodical speech reports about battery state, mainboard temperature, distance already travelled, time of your ride, average speed etc. I also added other languages thanks to @koto, @ArqFG, @andress, @George Iliev, @Lefteris, @fabio70mi, @travsformation, @Hansolo, @Tazarinho and other contributors. Now EUC World has been almost completely rewritten, becoming a completely independent application. Currently EUC World supports following languages: English Catalan Czech French Polish Russian Spanish Bulgarian, Brazilian Portugese, Dutch, Greek, Italian are partially supported (would you like to make updates?) Supported wheels: Gotway (all current models) Inmotion (all current models) King Song (all current models) Ninebot One E+, One S2, Z6, Z8 and Z10 Rockwheel GT16 Solowheel Glide 2 and Glide 3 Supported watches: Android Wear 1.4 and later Wear OS Pebble (using WheelLog watch app) EUC WORLD APPLICATION FEATURES NEW IN 1.0.6 Full King Song support, including speed unlocking, calibration and firmware update. NEW IN 1.0.6 Flic 2 button support - Flic app is no longer needed. Flic 2 has better range, battery longevity and is more reliable that older Flic. NEW IN 1.0.6 CSV logs synchronization with euc.world account, allowing you to safely backup your logs on euc.world server. It also allows you to create tours offline and use data analysis tools (to be implemented soon). NEW IN 1.0.6 Heart rate monitoring, allowing you to display/hear your current heart rate and also include it during tour tracking or CSV logging. Tour tracking with complete telemetry Speech alarms and prompts - now you can pair your built-in BT speakers, earphones or helmet comm set with your phone and get instant voice alerts, prompts and reports. Wind noise will no longer be a problem and you won't any beep when going over predefined speed. Beeps and voice messages will let you know that you're approaching your wheel limits. User friendly interface - completely reworked and much more friendly user interface, giving more valuable invormations and with better contrast to improve visibility and save your phone battery. Flic button to easy activation of custom actions - now you can pair a small, wireless button with your phone and use it to activate horn, toggle lights in your EUC or get voice message with current riding parameters. You can get your Flic button here. Both Flic and Flic 2 are supported. Motherboard/MOSFET/motor load monitoring - load gauge lets you instantly check how much current is drawn from or put into the battery. If you're agressive rider this feature will let you know when you're near or over predefined load limits of your wheel. Improved overcurrent alarms - now you can have two independent alarms. One for peak value that will let you detect short, large current spikes (eg. during rapid acceleration). Another alarm is for "filtered", sustained current value. This way you can avoid situations when elevated current values may cause mainboard or wiring failure. Overvoltage/overcharge alarm - we all know that during braking or riding downhill our wheels enter regeneration mode. In some cases this may lead to battery overcharging resulting in cutout or battery failure if occurs too often and unnoticed. Now you can get alarm when your battery voltage approaches goes beyond safe limit. Extensive statistics - detailed ride statistics will let you know more about how your wheel rides, how your riding style affects energy efficiency, what power is needed etc. Wear OS (Android Wear) watch support - now you can get almost the same information just on your wrist with Wear OS watch companion app. You can also activate custom actions from your watch, just like when tapping your phone main screen or pressing Flic button. You can also start, pause, resume or finish tour tracking. Watch will also vibrate when any of the alarms is active. Custom horn sounds - you can select any sound from your phone to be used as a horn sound. More, you can have different sounds for Wear OS watch, Pebble watch (yes, they can work in paralell!), main screen tap and Flic button. Picture-in-picture - with Android 8 and newer you can benefit from "piecture-in-picture" mode. Even if EUC World is in background and you have to switch to desktop or another application, small gauge with most important informations will still be displayed in small window. WORLD OF ELECTRIC UNICYCLES - TRACK, ANALYZE AND SHARE YOUR RIDES EUC World allows you to record your rides including your wheel telemetry data. By default, saved routes are not visible to others. You can share them with others (friends, family etc.) by sending them a link. You can also make some routes available to everyone, so they will be visible on the main page and from your signature image. You tour can be live during your epic rides! 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 to be connected with your wheel to record your rides. Even if your wheel is not supported by EUC World yet, app may still act as a normal GPS tracker. In this case wheel data won't be recorded along your track - that's the only limitation. You can also add photos to your ride. Euc.world online service will be significantly extended withing next weeks. Users will be able to store their CSV logs under their account and will be able to download them or view with my http://wheellogviewer.net/ tool that will be improved and integrated with euc.world. Also some extended statistics will be available for users. HOW TO START USING EUC WORLD APPLICATION AND ONLINE SERVICE? Get your application from Google Play or visit https://euc.world/getapplication Sing up with https://euc.world to create free account. Sign up in EUC World app with credentials used to sign up in previous step. Setup your EUC World according to your preferences. Start riding and enjoy you new app! Last, but not least - don't forget to give me some feedback so I can push this project in right direction. 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 euc.world online service 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. This way you can make the tour hidden or reverse - one of your beatutiful private tours make visible to everyone!
  2. 36 likes
    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!
  3. 31 likes
    Yeah, no worries @US69, go ahead and keep that video. In regards to the video not being identical... yeah sure, but out of the ~15 runs i did, i assure you that i did at least a few runs that were just as hard as the one that caused the bobble failure. As for the throttling, i didnt feel it. Just got a little annoyed with the beeping (couldnt disable the beep at 30kph and double beep at 40kph). So... anyways, i feel much better about this firmware update and have regained a fair bit of confidence in the wheel. Time to go ride and do some crazy stuff for the 16X review video coming up.
  4. 31 likes
    So to help clarify from my side, it is limited to HARD acceleration followed by immediate braking. Ive cruised at top speed followed by hard braking without any problems. So, braking isnt the issue, its the hard acceleration (much more preventable). Kingsong has been pushing out new firmware updates and made vast improvements to the motor control in the last month, so i believe that this will be a simple firmware update soon. A hard hill climb demanding the same power didnt result in this problem. Other than this motor control problem, the 16X has been a blast to ride.
  5. 31 likes
    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.
  6. 29 likes
    Lisa has owned her Inmotion wheel for less than 2-weeks but was frustrated at not being able to ride. All she could manage was to climb on top of the wheel and pull herself along a wall or railing. She reached out for help on Facebook. I saw her post and since she was within driving distance of me, I offered to help if she was willing to hop in the car for a 10-mile drive. At the appointed time this morning we met on one of our river bicycle trails. She with her Inmotion V8 and me on my Mten3. I gave her "watch me" lessons on mounting, dismounting, and riding. I had her practice dismounting from a standstill and then a fair amount of time doing rolling mounts (without actually mounting). Then we moved to the broomstick approach that I saw @who_the demonstrate on one of his training sessions that he was giving. In my case I was using a stout camera mono-pod. Finally it was time to separate her from any external supports. I was committed to getting her divorced from dependencies on railing or walls. Starting at a standstill while holding onto a railing she would start moving forward and then I had her push away from the railing. She didn't go far, but this was the beginning of establishing the needed muscle memory. Repeat, repeat, and repeat. She was getting better and better. And I trained her on rolling starts so that she could avoid the whole Hop-Starts that many of us began with. So much nicer. I then let her get on the Mten3 (while standing next to the railing). Once she started moving and let go, she had it. I now see that the Mten3 is an amazing wheel to help someone learn to balance. We did many runs with the Mten3 and towards the end she looked like she could just about go forever. This was a big psychological boast, and when she went back to the V8 her balance was noticeably better. And after a total of 2-hours of training, look what she can do I'd call this a success Although she wanted to join us on our Hooters ride tomorrow she still needs a little more practice. But it won't be too long before we have a new rider on our hands. Expect to see Lisa in one of our future group rides.
  7. 29 likes
    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...
  8. 28 likes
    [Split from this thread about the 1860Wh 100V MSX.] Gotway Repeats The MSuper V3s+ Debacle of 2017 So while I was visiting the San Diego riders this past weekend, I got to ride @ZenRyder's and @Nick McCutcheon's new 1860wh MSX's from Jason. First I rode Mark's MSX which he had already customized by putting a massive street/knobby tire on it. This was Mark's first Gotway. I asked if I could ride to see how the new tire felt. Something was strange but I couldn't put my finger on it. I was in the parking lot and therefore didn't ride it very fast. I concluded that it felt like maybe the axle nuts were not tight. Being Gotway, I know this has happened before. But then the discussion moved on to other topics. As we started our ride, hosted by @Flyboy10, we were riding through downtown San Diego when I was watching Nick on his 1-week old MSX. This was his first "real" ride on the wheel. Nick is quite the rider (he won a V10 at the LA EUC Games for his performance in the Gran Prix) but still doesn't have extensive experience riding lots of different wheels, including the MSX. His MSX was wobbling back and forth (not side-to-side). I thought he was making it happen (which he kind of was), but you shouldn't be able to do this on a Gotway even if you try. I asked him what was going on but he didn't have a good explanation other than it didn't seem to be behaving properly. So I asked to ride it. Whoa! This was horrible. As I rode down the street fairly fast the wheel was in a constant state of back and forth oscillation. The pedals were in hard mode. We weren't in Kansas anymore I then thought back to Mark's experience. A bit later I tried his wheel again, this time at speed. It was riding identical to Nick's - horribly. And it felt very unsafe, because if you hit any bumps the oscillation would be amplified. Later in the ride Nick almost lost it, and to me, he looked like he aged 5-years He said he wasn't going to ride it again until this was resolved. As soon as I got home I wrote Jason to tell him that his batch of special MSX's were unsafe. Somehow Gotway installed bad firmware, which I'm still kind of flabbergasted at. I mean, any experienced rider would detect something was seriously wrong within 10-seconds of riding the wheel. This wasn't an edge case like the 2017 MSuper V3+ firmware issue. You can imagine that this made Jason a happy fellow , to know that Gotway shipped him a container of MSX's which will need new control boards. Jason confirmed that one other owner complained and the problem was fixed by replacing the control board. But since Jason had only received one complaint, he assumed, rightly so, that it was a one-off problem of some sorts. But with my report from San Diego, the nail in the coffin was set. Gotway has confirmed the issue which apparently is evidenced by the new rear ring light not functioning. You know, that new thick ring LED that surrounds the 5 LED battery indicator. So it appears that someone at Gotway who shouldn't be allowed near the firmware installed the wrong firmware on these wheels. There are probably other riders like Mark who have never ridden a Gotway before, who don't realize that their new MSX is faulty and actually dangerous. Of course @Jason McNeil is on top of it and will make everything right. Once again I feel sorry for what Jason gets put through by these Chinese companies (it's not just Gotway). I don't know if this version of the MSX is being shipping elsewhere besides EWheels, but if so, people need to beware. And for your enjoyment, here is a video I shot that shows the problem (and where Gotway observed the lack of the ring light) And this video of Mark on his new baby, demonstrates how dangerous this wheel is with this bad firmware. If you have one of these wheels I strongly advise you not to ride it until fixed by EWheels.
  9. 28 likes
    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
  10. 27 likes
    During today's group ride the five of us were entering the Azusa River Wilderness Park As we were preceding down the trail (as seen above) we passed a security truck parked on the side, and the guy jumped out and told us, "those aren't allowed here, you have to leave". No use arguing with this guy, that was for sure. So we back tracked to the entrance and were met by a woman from the "office". The guy in the truck obviously called ahead. We had time so we decided to debate the issue with her and see where it went. I asked her if bicycles were allowed and she said yes, but "no electronic or motorized vehicles of any type are allowed". I then, very politely, told her that California had passed AB604 in 2016 that allowed our wheels to go anywhere a bicycle is unless specifically stated otherwise. She said she would talk to the rangers in charge, and proceeded to telephone the main office. We could hear them talking and about 5-minutes later I heard what I never thought I'd hear. "OK, you are allowed on the trail". Our argument actually worked! I'm still amazed as I type this. We got back on our wheels and traveled the trail again. Here we are at the end of the trail, celebrating our victory From left: @Dzlchef, me, Daniel, @Dave U, and @Freewheeler P.s. We almost were not allowed back on the trail because Chris had been vaping, and apparently that's one step removed from child abuse in California. Chris couldn't even have his vaper on his person - they thought that he might use it when they couldn't see us. He had to place it behind a trash bin. I'm really not exaggerating the negative reaction that this state employee had towards vaping. Fortunately Chris was able to get his fix at another less patrolled park
  11. 27 likes
    What happened: So I was riding after the rain. The speed was about 30km/h. I saw a small pothole, filled with water. "Nah, a pothole, I'll manage. :-)" Boy I was wrong! Hidden underneath the water was the truth: This wasn't a normal pothole, it was a Fucking Assassin Pothole From Hell! About 1ft deep. I didn't fall from the wheel, it just changed trajectory. What followed was 1s of death wobble, followed by a faceplant. First time my helmet was scratched. And first dislocation in my life. What went well: Helmet - I banged my head harder than ever before in my life. My cheap $15 helmet made me feel nothing - not even a slightest headache! Without it I'd suffer concussion for certain. Wrist guards - my wrists are in perfect condition thanks to well spent $5. Knee pads - my knees are unscaved. Not even an ich! Another $5 of investment paid off. Phone cover - the cover got destroyed, the phone survived. I'll need to 3D print another one. That's what I designed it for. What went wrong: Dislocated shoulder - Since I have a pretty sturdy build, I couldn't pop it back in with a fence and I had to ride back home. I used this method to reduct my shoulder. I did it solo by tying my wrist to a bedpost. Best method from the ones I tried. I'm pretty sure I lucked out - I didn't rip any tendons (all muscles are working) and I have enough mobility to use the keyboard. It should get better every day. Conclusion: WEAR A HELMET! Preferably always. You may luck out like me previously, but the time will come when it will save your life. Concussed, I'd probably need an ambulance. I can't imagine riding a unicycle home 7km with brain damage. With a helmet it was a pleasure to get hit in a head. I felt literally nothing. Even the cheapest one from crapsco will do wonders. Wear wristguards! They are small and fit in pockets. I can type with both hands thanks to them. Wear knee pads whenever you're doing anything risky. I'd have two more shallow wounds to take care of if I skipped them today. Be really careful of ANYTHING under water. You never know how deep it is. https://forum.electricunicycle.org/topic/16057-my-new-ks-18xl-survived-from-being-underneath-2ft-of-water/ What other people thought: Since I kept both my hands on my helmet when I rode home (it was the least painful position), I'm pretty sure that other people thought I'm showing off or smth. Actually, it would be pretty hard to ride back home on a bicycle or a scooter. On a EUC you can ride with two shoulders dislocated! Please disregard all my past posts about not needing a helmet. You never know when death will send a Fucking Assassin Pothole From Hell after you. Especially when you think "Ah, a straight street, what could possibly go wrong?". 0/10 - would not recommend. Wear protection, ride safely, beware of water!
  12. 26 likes
    Recently we've had a couple Customers report 16X cut-out events, one of these Customer has had moderate injuries, resulting in being bed ridden for over a week. The commonality of these incidents has been retention of v1.05, fearing the dreaded voltage reduced speed drop. Unlike v1.06, the speed reduction on v1.07 has been moderated to a 5kph reduction at ~33%, which then declines linearly from there. Beyond the voltage speed reductions, KS claims to have made other motor tweaks in the firmware to yield more torque. It really is not worth the risk of getting injured for the sake of eking out a couple more kph on reduced battery. Please don't wait until you get a cut-out before upgrading. UPDATE 17th Nov: Another v1.05 Customer had a cut-out last evening, went down at max 30MPH, he's shaken but alright, his Wheel is a mess. Don't delay this update.
  13. 26 likes
    This is what retirement looks like for me, as of yesterday
  14. 25 likes
    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.
  15. 24 likes
    Hi, I'm happy to announce that Samsung (Tizen-based) smartwatch owners will soon get support for their watches in EUC World application. It was possible thanks to the support provided by @Jason McNeil from eWheels.com and by other donators that supported this project. Now I'm preparing to set up a development environment and need some informations that will help me better suit needs of majority of Samsung watch owners. This is why I've created this poll. It is addressed to everyone using or planning to use Samsung watch, not only for EUC World users. This poll includes all Samsung devices, not only Tizen-based and this was intentional.
  16. 24 likes
    I think it's time for a own thread about all mods to make the 16X even more better. I will start with a picture dokumentation. 1. Dust and dirt inside housing. After 25km offroad from new I cleaned the wheel and do the job with the metal sheet below the pedal hanger and protect the speaker grill with fabric (see below). Additionally I even sealed the complete housing from front to back with tape. (gap between inner and outer housing) and today after 45 km (30 km extreme offroad / 15km pavement) I have so much sand in the inner housing that I thought the lower LEDs are defective on a length of about 15 cm. But they weren't, the sand covered them completely. The hole under the pedal holder was probably not overlooked, but is there to let the sand out again. I opened the 16X again...now you can see that most of the dirt enters between the mud flap and the housing. Front rubber - biggest gap between housing and rubber I have dismounted the rubber part, cleaned all with alcohol..... ...and used super glue on the red marked place (off course the inner side ) Mud flap - big gap between the flap and the housing I drilled in steps from 1 - 1.5 - 2.0 and used a 3 x 12 mm screw with a washer (this time no super glue, because glue doesn't holds very well after a crash on the mud flap The rubber presses itself too much into the plastic holder and loses its tension. Just one screw with 3mm machine thread. The sheet metal on the pedal holder shouldn't be longer than here, otherwise the outer housing will hit it. The passive Subwoofer membrane was nearly complete loose. I removed the old white sealant (wrong glue for this kind of rubber) from the housing... ..., the membrane was already clean like new. 2. Tire sit not properly on the rim I found out that the old tire and the new tire are not sitting properly on the rim and have a 2-3 mm radial and lateral runout exactly at the valve position. The reason for this is that the valve hole is drilled too far outside and the tyre cannot slide into the rim bed. Pressing, squeezing and pulling everything did not help, not even with lubricant.The old tire already has also a pressure point at the valve position. I had to mill the valve hole 3mm to the inside (hole is now oval), so that the tire had enough space to slide on the rim bed. Here are some pictures of the original condition. ...and here after the fix. Now the tyre sits properly without any lateral or radial runout.
  17. 24 likes
    I made a raw First Impressions video as I introduced myself to the Nikola
  18. 24 likes
    64-miles on my official range test today. The best (by a long shot) of any 1600wh wheel that I've ever ridden
  19. 24 likes
    After taking an extended break from riding, I wiped off the extensive dust on my Tesla and decided to go for a ride. I can’t believe it’s been about a year now since I’ve been on an EUC! I charged it up to 100% about six months ago, and it was still fully charged so off I went. It felt strange donning on all my old riding gear, but I made sure to cinch up my sleeves on my moto jacket to avoid elbow pad slippage. My tire was at 20.5 psi so I pumped it up to 55. I have to say it’s like riding a bike - you just don’t forget the technique even after a year! The Tesla still performed flawlessly after not being on for a year. I wish I could say the same for my Ninebot E+. It doesn’t turn off using the power switch so I have to pick it up and let it spin to shut down eventually. The ride was uneventful, and it was fun getting back to riding. Hope you all keep having safe and fun rides!
  20. 24 likes
    Back from my testride with the new firmware. I wanted to take my normal riding routes but it all came different, very different. As i walked out of the house my neighbors came out with their high end mountain bikes and i asked them if they know any good bike trails nearby and they said that they’re going by car to a forest now with good trails. And i just said ok i‘m coming with you and they said, cool but they don’t know if i will make them trails on my wheel. I sad we’ll see. And i tell you what it was really really hardcore, i mean really hardcore. It was just steep hills up and down up and down, roots everywhere,tight slopes right and left, jumps and so on, i had to be focused on point the whole time. And these guys where just flying and jumping through there and they where amazed that i could keep up with them, me too. Some sections where so steep i had to stand tip toes. It was the ultimate stress test for me and the wheel. We rode about 3 hours hardcore, my t-shirt was soaking wet after the ride, never had that before. And i normally ride pretty hard off-road, but this was from another world. The wheel was performing like a beast, and surprisingly it was running much cooler than before the update, about 40-45C, before the update with normal riding it was about 50-52C. Sometimes i thought ok that’s it the wheel will blow up any minute, but it didn’t. It was really good fun but i‘m really glad that me and the wheel made it out alive. R yeah i must say i love the 16X, excellent wheel.
  21. 24 likes
    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.
  22. 23 likes
    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
  23. 22 likes
    I recently rebuilt and customized my beloved first wheel: the Msuper V2. Just need to find some sort of trolley so I can use it for around town...
  24. 22 likes
    Correction: it’s not the NEW tesla but a slimmer 100v 16inch Wheel using the new 21700 cells.. for city dwellers from Gotway.. for ease of transportation. Coming soon. Me with Mr. Lin founder of Gotway.
  25. 22 likes
    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.
  26. 22 likes
    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.😊🌸🌺🌼
  27. 22 likes
    City night ride. Strap on your headphones.
  28. 22 likes
    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).
  29. 21 likes
    A Short Public Service Announcement Have you just received a new beast of an EUC with 1600wh (or more) of bundled energy and find that you are experiencing much reduced range? Your fellow riders of similar beasts are able to go much further than you? You've become concerned that perhaps your wheel is defective and it needs to be returned? Fear not. You have fallen prey to the The Big Boys Club Syndrome, where you have progressed from your first beginner wheel to a performance wheel. What do you do with this new wheel? You hotdog it. Every time you start you lean hard and heavy to experience the thrill of the newfound power. There is no such thing as slow-down. No, break hard and fast. But whoa, "I'm not getting the range that I'm expecting". I go on group rides with guys riding the same wheel as I have, but I'm Ubering home while they continue on their way. Time to call @Jason McNeil at EWheels to complain that maybe one of my battery packs is defective. In all seriousness, I'm writing this because a local rider with his new Nikola was concerned that something was wrong with his new wheel. We went on a ride together where it was important to do proper battery management to get through the entire route. I knew he had these concerns. I was to maintain the proper pace (speed) to get through the 45-miles. Just looking at how he was riding around the parking while we were prepping told me everything I needed to know. He was Hotdogging It So I established new rules for this ride. Easy starts and stops and no 30mph riding. What happened? This time he completed the ride with plenty of leftover capacity and was getting the same range as the rest of us. Lessons learned for him and a saved call to Jason
  30. 21 likes
    Video courtesy of @Yellowman During Day 3 of the 7-Day Southern California EUC tour I face-planted on a trail in Griffith Park. It was night and I didn't see the large rock in my path. The wheel stopped but I didn't. My knee pads, elbow pads, and wristguards came into play. The Flexmeter skid plate on my right hand was ripped off and I could feel that my elbows and knees hit hard. Absolutely nothing happened to me. After a couple of minutes we continued riding. Just reaffirming the advantages to wearing protection while riding.
  31. 21 likes
    Confirmed improvements from GOTWAY Better fan.. the Nikola fan is to noisy. blacked out pedals temperature sensor on/closer to the MOSFETS Better LED lights 21700 cell batteries coming next in all GOTWAY wheels including the 1800wh NIKOLA 100v and MSX 100v (Yes MSX is getting an upgrade) New motor design. More compact so takes less space New E-Scooter and E-Skateboards to change the market 126v needs bigger and thicker wires its late here in Shenzhen where I am staying after travelling from the Gotway factory.. for such a small company, they are doing some amazing things, and they are open to suggestions.. just let me know and I will pass it on to them. 😁 tomorrow is Kingsong.. can’t wait 😊 will report back
  32. 21 likes
    Hi all, I have been reading this topic intently over the past few weeks. After reading so many negative comments and issues I have to admit I was very worried. I just got my 16x this week and had my first today. The build quality is very impressive. Frankly, I really don’t know what all the fuss is about regarding the tyre. I am a 152 lb rider based in the uk and I have my wheel pumped up to 30psi. It rides very well with minimal wobbles - even under braking. I feel like I have full control over the wheel. If anything the tyre feels to ‘squishy’. I ride all my wheels pretty aggressively and I personally really like the ‘gyro’ affect! With the right technique you can corner a lot quicker. I have attached the link to my first ride here so you can see how I corner. So far so good. I will hope to do a full comparison with my other wheels (Tesla v2, 18l and MSX) hopefully by next week. Shaun *Ride safe all*
  33. 21 likes
    OK, I've received additional confirmation from Gotway. They are indeed testing the 126-volt configuration as we speak! I'm going to get one. The EUC universe keeps getting better and better
  34. 21 likes
    Hey folks, took the 16x on about 30 miles of off road trails and hard riding today. It was an incredible performer. I had the riding mode in the medium setting for most of the time, and did find that at 25mph and above it had a jittery feel to it. Then I switched to experient and the wheel feels solid as a rock. I've only gotten it up to about 27mph as I was on a pretty bumpy crushed gravel path but the wheel felt AMAZING. Climbing very technical trails with large (helmet sized) rocks and huge roots the wheel jumped over them all eagerly. I am absolutely in love. I didn't try to reproduce Kuji's hard acceleration -> hard deceleration but I did go up and down huge hills and did some drops (nothing huge, maybe 2 - 3 feet tops) and had no issues. The wheel did make an AWFUL noise at one point, but we found there was a stone stuck between the wheel and the housing so it was going berzerk trying to accommodate the new variable in the system. Got some nice scratches from crashing into boulders or over stone walls. Developing a nice patina - but the shell held together wonderfully - not fragile as far as I can tell. If you want to see some footage there's a little bit on my instagram story @magicrobots.
  35. 21 likes
    My local newspaper got some awesome photos of me that I wanted to share.
  36. 21 likes
    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!
  37. 21 likes
    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.
  38. 21 likes
    I saw this cool dojo-esque structure on my commute home the other night, and figured I should film some grooving in there...
  39. 21 likes
    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
  40. 21 likes
    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.
  41. 20 likes
    Currently at the Gotway factory.. the 126v is a way off.. they have to work on improving the components first and test it. So release in 4- 6months time.. there is a new Tesla coming though 😁 yes a New TESLA.. oh and a variation of the Nikola with a new battery size(21700 cells) 😁
  42. 20 likes
    I joke about my wife, “the mean old vacuum cleaner lady,” but they are just jokes. She puts up with ME after all. She never complains when I buy a new wheel. ( ....... because I make sure that she always has the best wheel) She hardly ever really complains about anything. (That part really scares me. I just know she is going to snap someday. - No more Rocky Top!) We are best friends in life and I could not live without her. (Someone has to feed me and keep me from eating nothing but crackers and peanut M&M’s) Wives are truly great. I don’t know why they put up with us ...... or maybe it is just me.
  43. 20 likes
    <further_speculation> The 20” wheel has a 2400W motor. Riders are disappointed with the slow acceleration. Threads pop up left & right wondering how much more powerful the motor should be to feel zippy like the MCM5. A few people will try to explain that a 20” wheel can’t be zippy no matter what, and that zippyness has practically nothing to do with the announced wattage, which is kind of a bull itself anyway. Links to previous discussions with a bit more advanced physics are included. Those people are deemed arrogant and blocked. And the conversation continues with false ”math” calculating irrelevant measures. It is decided that 3200W would do it. People ask for the manufacturer to up the power rating to 3200W. Manufacturer shakes their heads at these crazy people, but eventually does exactly that. People are excited. Buyers of the stupidly expensive 3200W 20” wheel are disappointed that the acceleration is just as slow as with the old 2400W version. False math continues, deeming earlier calculations wrong, and that the required power is actually 4200W. And this will never stop. The blocked users that know better have lost hope in trying to explain. </further_speculation> </surprise_rant> While a 20” Mini-Monster will be an interesting wheel in some sense, I think a properly off-road spec’d waterproof 16” or 18” wheel would expand the market spectrum much better, as well as sell better.
  44. 20 likes
    Official Kingsong 16X Review
  45. 20 likes
    Well i had a really nice day. Last weekend i received my CST 1488 tire and i couldn’t wait to get it changed and try it out. So as i wanted to visit Chris and Benni from 1radwerkstatt anyways i thought its a good opportunity to go there meet those guys get the tire changed and do a test ride with them. Today i took the tire and my 2 wheels hopped in my car and rode 180km to Ballhausen, small village in the east, where 1radwerkstatt is based. Really nice countryside, beautiful nature, and those guys are amazing, very down to earth, i like that. And they got plenty of machines and knowledge , Chris father is a mechanical engineer and he’s got a big hall with even bigger machines. When i got there Chris also couldn’t wait to change the tire, because he hates the stock tire like i do, but my CST came before his. So Benni did the tire change and Chris updated my FW on the XL, i was still on 1.11, i didn’t do the update myself because i am more scared of updates than going 45kph on one wheel. HELLO KINGSONG!!!!!!!!!!!! PLEASE DO SOMETHING THAT WE CAN MAKE FW UPDATES VIA USB!!!!!!!!!!!!!!! I must say the stock tire is really really soft when not on the wheel and not pumped up, to soft. We went for a ride when another friend showed up with a 16X which was really cool so we could compare them. And i tell you what the CST tire is great Chris loved it as well and said now he can finally ride the X without being f..ed up from that gyro feeling. He felt it in the first few seconds and i did as well. Completely different experience. We had a great ride, and i tried out some other wheels, the MSX and the Mten3, i really liked the MSX, felt comfortable within the first minute. Great wheel, might have to get it. So first of all i have to say a big thank you to Chris and Benni and if you are from Europe and you need a new wheel, or have problems with your wheel, call those guys from 1radwerkstatt, great guys, exellent knowledge. And if you want to really enjoy the 16X get that shitty tire off and put on the CST. Its so good that when i got home at 02:00 in the morning i just rode it for half an hour through the dark empty streets with a happy smile on my face. Also it felt that the break wobbles are gone and i don’t have that side to side banging anymore. So at the end i had a great day, made some new really nice friends and i have a wheel now that i can enjoy.
  46. 20 likes
    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! 
  47. 20 likes
    Just attended the Electric Games in France... Hundreds of riders, well organized, and AMAZING. Here's my video:
  48. 20 likes
  49. 20 likes
    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
  50. 20 likes
    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.
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