I would think they have used the wrong type of DC motor if they needed to have gears. A series wound motor (like a starter motor) has it's highest torque at stall and low revs and probably would have been a better choice for this. The control system might have been more complicated though.
Didn't seem particularly fast in the video either.
They probably used a low voltage electric motor that when the problems arose and a need for gearing as the low voltage motor under light load would draw to much current also the gear to drive it would be heavier.
jgiblin,
Dec 11, 8:02pm
they all had to use standard stuff. I think some had different speed controlers. It's all off the shelf. throttle, motor, speedy. it's 24v made with x2 12vmotor bike battary's all just adapted onto different frames. They keeped it all std to be fair to everyone I think. I had a bit to do with 1 of the bikes. It's nearly plug and play.
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