I am adding a 1hp brushless motor to my S-25 Schwinn mtb whenever I get around to it . . . and fix the front wheel broken spokes. Problem I ran into was I tightened the crank bolt and now the crank arm will not come off and I was planning on mounting the electric motor drive sprocket to the left side crank with a freewheeling motor drive. Not crazy about turning the pedals with the motor but this way I have use of ALL the gears both front and rear sets. This should allow me to climb just about ANYTHING short of going vertical and take care of the dead zone at the top of the pedal travel where one tends to stall on really steep inclines. The plan is to run Li-Ion laptop cells since I purchased about 70 of them and they seem to have the output power level that will be sufficent for this motor.
|