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  1. Some caveats on the Nikola though, all solely based on my observations and what I have heard. 1. Pedals may not be level, there may be some units with very very slightly uneven pedals, giving u the feeling that one leg is dipped more than the other 2. Check your tire rotation when you wheel, some are known to wobble slightly, may be an issue with the axel. Massaging and resetting the tire didn’t seem to help 3. The side pads may force your legs a little too out, making them slightly bowed. Removing the pads may feel better but when you sweat against the plastic th
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  2. I think she’s getting the bug, too. I guess we need 2 wheels, no other logical progression (other than 3).
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  3. It's metric M6x16 screw. You're right. This is why I replaced all the screws in both my KS-18L and KS-18XL to inox ones with allen key head. I advise you to do the same. It will allow you to easily disassemble your wheel multiple times. I advise to use following types as replacement: M6x16 ISO 7380 A2 (for pedal hanger) M3x6 DIN 912 A2 (for side covers)
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  4. Well, my attempt was a bust. I started by taking a close look at the wheel/case, and indeed there is an asymmetry: This is with the wheel tilted onto its back, looking at it from the front, with the camera lens as centered as I could make it. Clearly there is less clearance on the right side of the wheel/case (the left side as seen in this image). So, I proceeded with the right side first, removing the 17 (!!!) screws that hold the outer shell in place on that side, disconnecting the LED strips, and lifting off the shell. Now I could see the battery pack, cables/connectors, a
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  5. You can scratch the complete water immersion test off your list. My truck went into a lake with my wife’s brand new KS 14C sitting in the back seat (she never even rode it). It was completely submerged for over an hour. No spontaneous combustion or fire from the packs. Extreme amounts of corrosion were found in the motor and on the main board when I performed an autopsy months later but there were no signs of any combustible melting of the wheel’s shell or it’s surrounding electrical components.
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  6. Although probably an isolated incident this discussion has heightened my awareness to the risks of EUC fires. I store my wheels inside my garage and have smoke alarms throughout my home but they will not extinguish the fire. This automatic fire extinguisher may offer some precious time to contain the fire before it evolves into an out of control situation. https://haven-firesafety.com/product/haven/ I purchased this extinguisher as it currently on sale for $155. I now plan to build a wheel enclosure using fire rated gypsum board. https://www.homedepot.com/p/ToughRock-Fireguard-45-T
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  7. Maybe, before you drill them out, you can try one of these (I wouldn't recommend using impact drive, chisel or grinder though) And I totally agree with Seba on replacing them with allen key heads
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  8. Originally M3x10 screws were used in KS-18L and first batches of KS-18XL, but later KS got several reports of breaking posts, causing side covers to be loose. So they reinforced screw posts by screwing the posts from the wheel chamber side also, effectively reducing remaining post thread height. But this only aplies to the posts used to screw side covers and this is why there are two screw lenghts used. However you can use M3x6 screws everywhere, as there is enough length of thread. Torx screws will be good as well - just use whatever is available to your or what tools do you have. Instead of
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  9. I don't think the more modern wheels shutoff at high speed anymore. Older wheels (say, 2015/2016 and before?) did that, either because the BMS cut off the power when the current rises too high, or the mainboard logics did that for whatever reason. It's not the gyroscope switching off as such, either the logics stopping the motor drive altogether and leaving it powerless or entirely losing power to the wheel due to BMS switching off the discharge-side, but like said, I don't think any modern wheels do this anymore. I probably should revise the first post at some point, speed-related cutouts cou
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  10. At least here in the western countries the legal system is very consumer protective. If a battery pack can catch fire, it's the manufacturers fault (just not if the manufacturer can prove ?grave? misuse). Having "normal" accidents with the unicycle, driving in light rain, moist enviroments, leaning it at a wall while charging definitely does and cannot not count as misuse! That's the regular use case for the wheels sold! Crashes are normal use cases for one wheeled driving devices by definition - no responsibility of the consumer can be constructed if outside visual inspection and mechanic
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  11. EURO ROAD TRIP 400km ( with english subtitles) Step Metz - Luxembourg This episode returns to the portion between Metz and Luxembourg where, guided by Fabrice from Thionville, we walked along the Moselle rivers.
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  12. I would say that by charging in this way you increase the risk of self-ignition of the battery in the longer run. Battery cells DO imbalance with time and mileage, it's just unavoidable. There are always small variances between each cell, even in new. This variation increases over time and usage. By charging to 80% you effectively disables BMS balancing feature, so it's possible that after some longer time cell voltages will start to differ significantly. It's a short way to SINGLE cell failure, then SINGLE cell self-ignition causing a WHOLE wheel to stand on fire... If you ride frequently, ju
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  13. Thanks all for info and advice. Especially @mrelwood for the detailed shell realignment attempt instructions. I’m 205lbs (that’s 93kg) btw. In the video I was riding straight and intentionally shifting the bulk of my weight onto the right foot, to the point the left foot was starting to come off it’s pedal. I have no desire to ride one-legged, this was just a way to exaggerate the problem so it could be heard clearly in the video. In normal writing, what I am hearing is a slight rhythmic rubbing sound all the time, except when I lean left (it goes away then). When I lean right, on the other h
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  14. Derby Wharf - Salem, MA
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  15. I'd like to suggest to add an extra profile field for us the users to type what EUC/s we currently own/ride. For example see attached.
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  16. Yes, it's possible now.
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  17. I'd skip the cheap clamshell bike helmets, like Triple 8, etc. You'll get no protection from facial and dental injuries which are likely if you have a classic faceplant. I use the Bell Super 3R, and the TSG Pass Pro in cooler weather. Both look cool and are super lightweight (less than 1kg). The Bell has MIPS, comes in lots of colors, and is convertible - you can remove the chin bar if you still want to use it as a clamshell. It has fantastic ventilation and can be found on sale for $100-150 on Amazon if you're patient. The Super 2R is essentially the same and can sometimes be found for l
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  18. Before damaging the wheel in any way, you could start off with putting the wheel (turned off) in a box with some form of heating which you can control. Keep it at, say 60 degrees Celsius (140F), and if nothing happens, ramp it up to higher. The point is to simulate a wheel sitting in a hot car in summer: "“When temperatures outside range from 80 degrees to 100 degrees, the temperature inside a car parked in direct sunlight can quickly climb to between 130 to 172.”" 172 Fahrenheit is about 78 degrees Celsius. I doubt anything happens, the cells aren't supposed to start thermal runaway unti
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  19. Just to clarify for others. The Mten3 is not ideal for rough roads because of the small diameter tire, but it's a little tank of a wheel with extreme power. The i5 is a weak wheel that will self-destruct.
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  20. old topic, but for future reference, a single yellow led flashing on each side means that no motor was detected.
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  21. Doesn't really make a difference why the motor switches off It does if you ignore all the warnings. It's simple: always look where you are going. Always as in "every single second, no kidding". The second you don't look, there will be a crazy unlikely obstacle just this moment, that's how it always goes Looking will also drive the subconscious process or riding in a matter so possible obstacles are considered or avoided. Or a car hits you. Don't expect a crash due to the electronics failing. It can happen, no way around it, a EUC is inherently unstable and only kept upright b
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  22. New users are restricted to 3 posts in 24 hours not 2. Unfortunately this is necessary for spam prevention. However I have just changed it to 5 instead of 3. As your reputation increases due to the quality of your posts that number goes to as high as 100.
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  23. I agree that solar can’t be the only solution. I think solar is more of a stop gap. We have to start somewhere. We need to start reducing our use of the finite resources. ‘For me solar made economic sense. It was $0.10 cheaper per kWh. I understand that it may not be the case in your part of the world and you may have something better and cheaper to jump on toor maybe nothing is cheaper. We are all not rich and cant just do this without some economic incentive to do so. I wouldn’t worry about the efficiency of the solar panels so much. When designing a system you have alrea
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  24. Marty, rain doesn’t mean no electricity. Just means less. It isn’t pitch black outside when it rains. This is a common misconception. I have a 17kw system and over the life of the system I would save $34k in electricity. I pay $0.08 per kWh, the power company charges $0.18 per kWh. I make over 17,000 kWh per year. I’ve had it since 2013. Not off grid, but supplement. Some people don’t like the look of the panels, some do. Just like with the look of the GW wheels. LOL. But Tesla has come out with some pretty sweet looking shingles that are indestructible. Makes sense for anyone
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  25. That option is in the making:
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  26. On top of this and the V10's (This is a single incident, but apparently the problem was more common place with the early V10's, enough to warrant for the company to recall wheels / send water-proofing kit for the packs to the owners), there's at least one Ninebot One fire reported recently: Someone made a mistake in changing a tire and blew up their pack: Also, Marty made a video of someone's ACM that caught fire after a crash, somewhere there was a picture of some other Gotway burning up on the street, and @meepmeepmayer reported of a KS18A that burned partially. Back
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  27. The maximum possible torque decreasing linear over the speed is already including the internal resistance of battery and motor (ie the battery voltage drop over the internal resistance). Just the additional voltage drop by the cell chemistry, which recovers again after the burden is released, decreases this values tempararily. And the discharge of the cells, of course continousily. With: U_battery_0 .... idle voltage of the battery R_i = R_i_battery + R_i_motor .... internal resistance of the "system" v_max_no_load .... maximum motor speed, with U_back_emf == U_battery_0 an
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  28. I'm certainly not against solar, in my opinion it should be used a lot more in places where there's sunshine all year around. As for providing energy on a global scale, it's a no-go, not as the main form of producing energy, need to have backup. Here's the sun's radiation energy over a year where I live: On the left is average kilowatthours per square meter over the entire month from January (1) through December (12). On the right is the annual average amount of solar radiation power in different cities in Finland, I'm in the middle (1127kWh / m^2 / year). These are before the l
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  29. The risk is not zero. There will be manufacturing defects, accumulated damage, water ingress, etc. I'd take an educated guess and say the risk of it spontaneously combusting is a lot higher than that of Teslas (the car) that have an active BMS with cooling/heating and generally go through less abuse than an EUC. Teslas have caught fire sitting on lots. Some people seem to be brushing it off or blaming the guy for having too many miles on the wheel. It's just an EUC, no sense in getting emotionally defensive about it. I do know if my wheel caught fire unattended, I'd most likely lose my h
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  30. All I can say is you're living in a dream world. Fossil fuels have much high energy densities that solar or wind. You've made a bunch a sweeping statements that are meaningless. What does "Solar beats all other forms of energy" mean? It's feel good verbiage. Minor power banks for nights? When I turn on my tablesaw the minor power banks will be drained in about 5-minutes. But I suppose I'll just have to alter my lifestyle so we can feel good about going solar. And when it's raining? It's been cloudy in Southern California the last couple of days. But no problems, just spend a couple o
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  31. Thanks for your responses and for all the helpful information, esaj, Kens, Lefteris, and travsformation. I think I’m starting to gain an appreciation for the nature of these interesting beasts! For those people who ride often and tend to approach top speeds, it sounds like UPD faceplants will inevitably occur at some point. Now I can see why comprehensive safety gear makes a lot of sense. Can’t wait to join the community of 21st century BCers!
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  32. They said the same about electric cars 6 years ago. They thought electric cars were crazy. Look at what is happening now, every car manufacturer is committed to going full electric in the next 5 years. Now Tesla is the best selling car in the luxury class. Eating BMW/AUDI/Mercedes lunch. Those guys now playing catch up. When you think about the numbers they are crazy. To go full electric we would need about 200 gigabattery factories about 5 bil each. You are right, there is a lot to figure out. If they figured it out already we wouldn't be having this discussion. You
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  33. But during normal riding, the tire should never be bumping into the shell. If nothing else that's going to affect your gas mileage
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  34. Turbo Tony's recent fall in SF at near 40mph on an MSX was knee to belly flop/slide (superman). He got up with just road rash...remarkable! He had much gear on and that gear definitely protected him. Not sure if he could reproduce such a dramatic fall again with so few injuries. Miami Ron did 37 on a Tesla and did wrist to shoulder and ended with dislocation. The collection of stories and videos seem to be don't use hands to shoulder technique. Although, at high-speed, there seems to be some luck involved as things happen to fast to properly prepare for the given situation.
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  35. again, not everyone needs to supercharge. 99% of the people charge at home with 10kw over night. most house holds in the us has 200a to their house. but they don't use anywhere close to that. It's actually the business that use a lot of electricity and peak hours is during the day. I'm in the north east and I could have gotten off grid with 25kw solar. i produce more than i need during the summer and need some help during the winter with my 17kw system. with rooftop solar, will require less and less electricity from other sources. Also with some battery storage at home should be
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  36. Oh man. Stop saying a Onewheel is like snowboarding. This is exactly what i want to fill my snowboarding void. But a Onewheel inn London. Not sure about that. The pint range is so pants though. I could live with 12mph speed if i at least get the snowboard sensation. But 6 miles. Come on man. That really is nothing at all. I wonder where the city dwellers would ride this? Park? Would a hilly park make it feel even more like snowboarding?!
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  37. As has already been said, it depends on a variety of factors, but high-speed dismounts are almost guaranteed to end in a faceplant, simply because you can't outrun the wheel. If you can, it depends on the nature of the fall, the angle, how your weight is distributed when you dismount (centered, all to one side because you're turning, etc). Electronic failures are extremely rare in modern EUC's, the only thing you need to worry about are cutouts, which are also pretty much guaranteed to end in a faceplant. Cutouts are basically when the wheel switches off the gyroscope due to an excessive
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  38. Today, batteries can take a lot of current. Tesla started supercharging at 90kw, now it is up to 250kw. We only need it to get up to ~1 megawatt to charge in 5 minutes a 85kwh battery pack. As for cannot create enough energy? We only need very little space on earth to create enough energy for the whole world. Solar has become so cheap and the more folks that put solar on their roof top, the more less energy the powerplants have to generate. In Hawaii, they generate too much power from solar. Biogas has been around for a while. Nothing has come of it because it stinks. LOL. C
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  39. Fusion is always 50 years away in the future, no matter what decade you check Still, if can be made to work, it's a good option. Personally, I don't think we can get enough renewable sources (wind-, solar-, waterpower) to produce enough electricity all the time, so unless a breakthrough is made in fusion, a very efficient and "cheap enough" way to store vast amounts of electrical energy or superconductors working in normal environmental conditions to transfer power from solar panels near the equator (someone claimed a couple of years back that such technology was about to be made, I remain sk
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  40. A lot of people here have already mentioned their advice for not getting the Mten3. I am going to give you my advice on why it could work. I use the Mten3 daily on my 20 mile round trip. I carry with my at all times a backpack large enough to hold the wheel comfortably so if I ever needed to carry it or conceal it I can do so. It's lightweight and easy to carry, for the most part. First is, the average top speed you will get with it will be 16-18 mph and reliable range is always half what's advertised, making it at around 12 miles. The only way I can recommend this wheel for commuting is
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  41. Received my XL this morning. Screwed the XL pedals on and put it on the charger for 4 hours, trolleyed to the gas station to pump up the tire. Then i went behind the gas station on a parking lot to get a feel for it, took me ten minutes to feel @ home, i thought it would take longer as i didn’t ride any other wheel than my KS16C. What an amazing wheel, i love it, and riding at higher speeds without waiting for the alarm is a blast. Had lots of fun today Ended up with a 55km ride with 75% battery left. bonus: didn’t have any problems with the app.
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  42. Marty, there are lots of things you mention are out of date. Gas cars had 100 years to mature, electric just the past 6 years. It has already surpassed gasoline cars in performance and convenience. Tesla Model 3 beat out the M3 in head to head. The model 3 is cheaper. Motortrend back in 2017 - https://www.motortrend.com/cars/tesla/model-s/2017/2017-tesla-model-s-p100d-first-test-review/ "We all understand acceleration. It's the rate of change of velocity. This 4,891-pound Tesla Model SP100D does it best, reaching 30, 40, 50, and 60 mph from a standstill more qui
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  43. Sitges (35 km south of Barcelona, Spain)
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  44. Our wheels don't have sophisticated active battery management and thermal runaway protection that Tesla has built into every car. If you only knew the steps that Tesla has taken to prevent their cars from going up in smoke. You are 10X more likely to crash and burn in a gasoline car(ICE) than BEV. You crash in a ICE, can be instant explosion. You crash in a Tesla, even if it starts a chain reaction, you have lots of time to get out. It's more like fire crackers and it is vented away from the cabin. I've owned three Tesla's now over the last 6 years. What should be banned is ga
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  45. If one wheel can burn a office building, can all your wheels together burn California ? :-o Just kidding, sorry, it was an easy one... :-)
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  46. 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. Assumi
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  47. I thought this was about to rhyme and @LanghamP was gonna go Dr Seuss on us
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  48. A wheel should be safe to charge off a stand. It should be safe to charge when it falls off-hand. It should be safe to start regardless of you be young or an old fart. Design it, I say, for both frownies and gays, as some of us townies ride minutes and others ride for days. Drop, and we pop (say I the wheel), and while others have helmets we who don't bother have platelets (for the asphalt God is greedy for riders who be batty). Fire, nah, 'tis only for hilclimbing fools, not dire New Yorkers riding Kingsong's jewels.
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  49. Based on how rude this guy is I would want no interactions with him and would doubt what he did say. I'm really wary of people like this.
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