I used 200A controller, battery lipo 22,2V 40000AH, motor c5065 ~2000 watts power.
as in my previous version, there is the problem of heating of the motor. I have solved all problems concerning the adaptation of composite parts, they fit and the plastic can be successful in this decision, but the engine heats up so much that it is impossible to touch by hand. Scooter tested in movement, very comfortable at high speed, overcomes slope of about 10 degrees without any complications due to the adjustment of the gear ratio. The speed at 30% throttle, about 22 km/h above have not tried, observing safety precautions. Feel the upper limit of 35-40 km/H.
If anyone knows the model of the engine, which could be implemented in this task, please write a message, I'll be happy to continue searching for a working solution.
If you decide to repeat, there is another hidden aspect, which is not shown. When the circuit is screwed by screws size M3x20, then the nut will need to solder tin, using a flux and solder tin. Otherwise, the movement will occur promotion screw and emergency braking, because he will fly out the details and hit a jam on the wheel.
The scooter will need napilnikom to remove 3 mm of aluminum for the passage of parts with chain. The single-speed chain. Freewhhel USA 13T, others will not fit.
May also be useful for shiboski to calibrate hit freewheel in the chain - 6 PCs (from M4)