... quality suitable various wheel new fashional 500w electric bicycle motor,500w electric bike motor,500w e-bike motor:Brushless Hub Motor ... 3pcs Magnet Body Size: 300*136*30mm Corresponding Controller: 48V 500W Controller Available Wheel Size: 16", 18", 20", 24", 26 ... 3pcs Magnet Body Size: 300*136*30mm Corresponding Controller: 48V 500W Controller Available Speed Gear Quantity: Single Speed, 5-Speed, ...