... 9:powerful designElectric bicycle kits covers:1) A:motor with doublewall rim DC 36V, 150W, 250W, 300W ... 48V, 150W, 350W, 500W. front and rear wheel motor are both available (100mm and 135mm for forks) ... 85%4) High quality raw martial 5) Thick magnet, cold rolled silicon 6) 27mm height of stator , ... the wire with same color11) 2m lever of front motor, handgrip, brake lever12) More options to assemble13) ...