I'm looking for a quiet, lightweight, high torque kit for my next attempt at building a commuter bike. I've tried an X5, Currie (48v), Cyclone 500w, Tongxin, and Bafang. Apart from the X5, which was too heavy, and the Tongxin which was too weak, all the others are too noisy for me. I know we all have different tolerances to noise and some will be surprised that the Bafang is too noisy, but my Bafang is noisier than the modified Currie kit.
My next build will probably be a Nine Continents kit from ebikes.ca, but I also found this site for petrol bikes http://www.bikeengines.com/orderpage.htm and thought about doing the conversion using parts from that kit with an RC motor instead of a petrol motor. A belt drive without a gear box should be very quiet, but would it work? Would the speed reduction be sufficient? The motor gear has 11 teeth and the drive ring has 148 teeth. Would the motor and batteries survive without a gear box? As you can tell from the question I'm a bodger not an engineer so don't be too hard on me please
All the best
Spike
My next build will probably be a Nine Continents kit from ebikes.ca, but I also found this site for petrol bikes http://www.bikeengines.com/orderpage.htm and thought about doing the conversion using parts from that kit with an RC motor instead of a petrol motor. A belt drive without a gear box should be very quiet, but would it work? Would the speed reduction be sufficient? The motor gear has 11 teeth and the drive ring has 148 teeth. Would the motor and batteries survive without a gear box? As you can tell from the question I'm a bodger not an engineer so don't be too hard on me please
All the best
Spike