... battery disc brake Size: 60*60*20mm 36V 350W brushless DC motor 36V 10AH frog lithium ion battery ... drivemotorfront/rear motor option,Diameter 108mm, 2 kg, 36V 350W,with sensor, disc brake optionUS$79.00Spokesand rimdouble-wall ... 13g spokesUS$20.00Controller9 MOSFETs,for both 36V/48V,350W US$20.00Lithium Ionbattery36V 10AH in frog case,10 ... 00 electric wheel hub motor conversion kit for e-bike e-scooter