... 100mm 3:brake type:v brake 4:weight:4.2kg new improved electric bicycle kit :1:36-48-60v 250 ... 36V, 150W, 250W, 300W; DC 48V, 150W, 350W, 500W. front and rear wheel motor are both available (100mm and ... 3.0AE:throttle with battery indicator and power switchF:electric brake (save version)All parts get CE approvalElectric ... 50sets by sea better than geared motor but light weight electric bicycle kits