Okay performance of the drive wheel made from a scooter rear wheel and axle is no better or worse than the drive wheel attached directly to the motor. At least none that I can tell.

Using sla batteries on the bike made no difference at all. The trailer with the flooded batteries seemed to pull as well or almost as well as the sla batteries on the frame.

the speed with the 250watt motor is about eight miles an hour I think with either power source. After a mile of mostly uphill riding the batteries had lost about half their useful voltage. Which means the range isn't too awfully good in uphill areas.

It is okay for exercise but it would never do as a transportation bike. I think I might try to find a cheap 350 watt motor and give it one more try before I trash the idea and move on to a new power source for the bike.

Also I doubt the value of the controller in a brushed motor, power assisted bike. Mostly it is wide open uphill and off downhill. I'm not sure a controller is much use since very seldom do I use it at a slower speed and it does not seem to save the battery at all. I think a push button on and off would work just as well for a pulse of power.

__________________
visit my blog for Riding in the hood,... The home brew bike journal....http://frictiondrivebicycles.blogspot.com/ The deacon's fiction (new installment daily).... http://chinesekitmotorbike.blogspot.com/

http://freekibble.com feed the homeless dogs