Parts of Electric BikeChina Electric Bike BBS 01 BBS 02 Middle Center Crank Drive Motor Kit 36V 250W 350W 500W 36V MID Drive Motor, Find details about China Ebike Motor, Bafang Middle Motor from Electric Bike BBS 01 BBS 02 Middle Center Crank Drive Motor Kit 36V 250W 350W 500W 36V MID Drive Motor