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I'm posting here because I would love some thoughts from the community to help strengthen my relationship with these wheels. After putting over 4K miles on my Ninebot Z10 and loving it, I purchased an S18 in hopes of not face planting as often when hitting these huge potholes in Seattle. Shortly after falling in love with the S18, I send the thing into an accident by over-accelerating and inducing a strong pedal dip. This destroyed the trolley handle and ripped me to shreds. Diagnostics showed the unit was working fine after this. After a week of bandages I hopped back on to test if it was working. It appeared to drive fine and then suddenly locked up without warning and sent me into a crash at about 15mph. It was a brick afterwards. Huge props to Rev Rides for taking my wheel in, examining the issue and replacing the board with KS's latest one. It turns out the first accident damaged a capacitor on the board which caused it to fry later when I was testing the unit again. Now (again huge thanks to Rev Rides) I have a beautiful working fixed wheel and I am scared to death to use it. I would love some thoughts on these units so that I can stop worrying about it. Is there any chance something like a lock-up could happen again? Does anyone know if these boards typically have backup or redundant circuits that kick in if something fries? Should I be worrying about any water getting to the main board while riding in Seattle? I'd love to stay safe and sane as I'm tired of nursing injuries and replacing clothing. Thanks.

Slippery surface. wet Ice. Wheelspin, fall forward, solution, spikes Slippery surface, wet and dry ice, turning too quick, lose grip wheel slips to side, i step off or fall into puddle. Too little power in hill, over current shutoff, step off. More powerful system Too little power. potholes. superman. solution, bigger diameter, shock absorbers, higher profile tyres, more power, sensing systems, awareness. Too high surface pressure, dig through snow, hit ice ridge wheel spins, loss of control, wider tyres and big treads and spikes as well as higher profile tyres and shock absorbers Too low foot plates, shell carrying too much weight rather than the tyre. Get stuck in snow. solution, let the tyre and wheel be the part that shows below the foot pedals. snow build up, mess up shared corridor, solution, a cover like on circular saws or design it to not accumulate alot of water and have an inbuilt rug to stand it on. No trolley handle, pain in back. solution. trolley handle or less weight or taller design or self driving with gyroscopes or wheels behind you. Under powered, cutoff at high speed. sometimes at low battery. solution. bigger battery, more power, utiilise less of maximum potential. Water in the wrong places. Rusty start button. water short. wheel cutoff or no turn on and late for appointment. Too big wheel diameter, lose balance because of transition from flat to down hill. balance point on pedals shifts. Solution, move pedals dynamically or have a smaller wheel so contact point is limited in movement back and forwards. Low speed, no shock absorbing. plantar fasciitis from standing too long. Solution, higher speeds and softer ride. Low battery, late for stuff. no more range, slow speed. solution bigger batteries. enough for a full day. say 5000Wh.4 Oh. and i want tyres with spikes that can be activated and deployed. and give me induction charging. What are the causes of your accidents, what happened and what could a solution be?

I would ask you to share your experience and opinion about EUC accidents, their causes and solutions. We need this exchange of information for our safety and for avoiding that EUCs will be forbidden by laws in the future because they are too dangerous. Please keep every accident very very short and to the point. Here is my experience after >9500km: 1st EUC: unbranded unicycle 14" wheel 300W nominal: - motor cut-off at 15km/h, not even fallen, I continued running => don't buy unicycles with very low speed limits, with very low power! - smaller wheels makes you slow down at every discontinuity on the road (pavement, pits) and they can make you loose your balance (=our main fear) and fall more frequently at non-flat roads => buy bigger wheels for riding stability. I think even 16" is not big enough. my next EUC will be again 18" and not the Gotway Tesla because power is nothing without control. The rest is with Gotway Msuper v2 18" 1000W nominal, speed limit 45km/h: - balance lost but not fallen, tilt forward at 45km/h without helmet, motor did not cut off (if it did: I was nearly dead) (what is tilt forward? => when reaching max. power the motherboard keeps on delivering max. power instead of cutting the current: so you lean forward but without acceleration of the wheel but without cutting off of the motor too, this makes you loose your balance in forward direction, if you react quickly by leaning backwards you save your live which was the case here) I was not fallen but I lost during a second my balance to forward direction but this was the most dangerous incident I ever had => buy a EUC with backward tilt before EUC limits (was not the case for GotWay!) , buy EUC which continues delivering max. power at his limits (Gotway is very good at this point, he knows that motor cutoff is the worse thing that a EUC can do, it avoids at all prices) - fallen at 5km/h: at day I ran in a large tunnel where it was a little dark (since I ran at day I did not had my light on), I saw a pit of 15cm, I leant heavily backwards to brake, the motherboard gave his full power to brake again without cutoff, I leant so heavy backwards that I fell backwards at +-5km/h, no injury =>buy a EUC that keeps on max. braking power without cutting off (Gotway is good at this point) , buy a EUC with very powerful lights (even new EUCs have tiny lights which are insufficient to see dips on the road), buy bigger wheels since I would fall forward instead of backwards in this case if I had a 14" wheel because a 14" wheel can fit more in large dips. - insufficient braking power: due to my heavy backpack and at low height (maybe it is my weight which is relatively low in comparison with total weight) I braked too heavy so that Gotway could not increase braking power after reaching it max. braking power => I lost my balance during a second to rearwards direction, I reacted quickly by leaning forward to decrease my deceleration. => by a EUC with high power so that your motor can brake with high deceleration in case of need. again no motor cutoff after reaching max. power (very important) - fallen at 5km/h, at standstill I accelerated so much that motor reached max. power and kept this max. power to save me but this time my backpack was too heavy so that I could not react at time to decrease my forward leaning ( I am not used to ride with backpacks, so I had to be more attentive, my fault), I fell forward at +- 5km/h with a full cover motorhelmet on, small injuries but the full helmet did his job. => 3kW motor did not give enough acceleration power => buy EUC with highest power. I would like to know what solutions there exists for overheating of mosfets. Fans? passive cooling with the wind? susceptible for dust? battery and motherboard behaviour at end of their life.

I would ask you to share your experience and opinion about EUC accidents, their causes and solutions. We need this exchange of information for our safety and for avoiding that EUCs will be forbidden by laws in the future because they are too dangerous. Please keep every accident very very short and to the point. Here is my experience after >9500km: 1st EUC: unbranded unicycle 14" wheel 300W nominal: - motor cut-off at 15km/h, not even fallen, I continued running => don't buy unicycles with very low speed limits, with very low power! - smaller wheels makes you slow down at every discontinuity on the road (pavement, pits) and they can make you loose your balance (=our main fear) and fall more frequently at non-flat roads => buy bigger wheels for riding stability. I think even 16" is not big enough. my next EUC will be again 18" and not the Gotway Tesla because power is nothing without control. The rest is with Gotway Msuper v2 18" 1000W nominal, speed limit 45km/h: - balance lost but not fallen, tilt forward at 45km/h without helmet, motor did not cut off (if it did: I was nearly dead) (what is tilt forward? => when reaching max. power the motherboard keeps on delivering max. power instead of cutting the current: so you lean forward but without acceleration of the wheel but without cutting off of the motor too, this makes you loose your balance in forward direction, if you react quickly by leaning backwards you save your live which was the case here) I was not fallen but I lost during a second my balance to forward direction but this was the most dangerous incident I ever had => buy a EUC with backward tilt before EUC limits (was not the case for GotWay!) , buy EUC which continues delivering max. power at his limits (Gotway is very good at this point, he knows that motor cutoff is the worse thing that a EUC can do, it avoids at all prices) - fallen at 5km/h: at day I ran in a large tunnel where it was a little dark (since I ran at day I did not had my light on), I saw a pit of 15cm, I leant heavily backwards to brake, the motherboard gave his full power to brake again without cutoff, I leant so heavy backwards that I fell backwards at +-5km/h, no injury =>buy a EUC that keeps on max. braking power without cutting off (Gotway is good at this point) , buy a EUC with very powerful lights (even new EUCs have tiny lights which are insufficient to see dips on the road), buy bigger wheels since I would fall forward instead of backwards in this case if I had a 14" wheel because a 14" wheel can fit more in large dips. - insufficient braking power: due to my heavy backpack and at low height (maybe it is my weight which is relatively low in comparison with total weight) I braked too heavy so that Gotway could not increase braking power after reaching it max. braking power => I lost my balance during a second to rearwards direction, I reacted quickly by leaning forward to decrease my deceleration. => by a EUC with high power so that your motor can brake with high deceleration in case of need. again no motor cutoff after reaching max. power (very important) - fallen at 5km/h, at standstill I accelerated so much that motor reached max. power and kept this max. power to save me but this time my backpack was too heavy so that I could not react at time to decrease my forward leaning ( I am not used to ride with backpacks, so I had to be more attentive, my fault), I fell forward at +- 5km/h with a full cover motorhelmet on, small injuries but the full helmet did his job. => 3kW motor did not give enough acceleration power => buy EUC with highest power. I would like to know what solutions there exists for overheating of mosfets. Fans? passive cooling with the wind? susceptible for dust? battery and motherboard behaviour at end of their life.