The subject bike, on CL for $60, had an Amp motor (out of business for 10+ years AFAIK). The battery and other extraneous parts were discarded, the corroded aluminum was cleaned with successively finer grit sandpaper and the frame was painted. The bike runs fine @ 36V with the battery nestled in an adapted water bottle holder (not shown nor is the 30" of extra wire removed from the motor and throttle).