Rear motor bicycle kit

bicycle kit Features: 1) DC 36V, 150W, 250W, 300W; DC 48V, 150W, 350W, 500W 2) Waterproof high density sealant, sealant ring 3) High efficiency: 85% 4) High quality raw martial 5) Thick magnet, cold rolled silicon 6) 0.53mm brass wiring 7) High climbing ability: 40 degrees 8) Five-year guarantee 9) Easy to understand 10) Connect the wire with same color 11) 2m lever of front motor, handgrip, brake lever 12) More options to assemble contorller Technical parameter: start the handlebar control the speed of starting ,controller is flexible standard electric hall electronic no-grade timing systerm , second mode :start with pedal speed range:1-100% 1.1-4.2v normal voatage:DC 24v 36v 48v 60v 72v the low voltage protectorfor battery: 21v-31-41v battery indicator and cycle-analysor Max current : 6mosfet normal 36v-48V250-350W 15-18A 9mosfetnormal500W36-48v 22-25A 12mosfetnormal500-800W36-48v 22-25-27A 12mosfetnormal 800-1000W36-48v 27-33-40A Different function option: 1.forward and backfard 2.pedal also speed limtied 3.three step mode (flat-normal-hill) 4.automatical cruise (if you keep the same current for more 5seconds ,you can leave hand from grip ,it automatical keep same speed ) we can design as customers requrimentCustom requests are available. Please inquire with the information as follows: 1) Wheel size of your vehicle 2) Top speed you require for 3) Vehicle application Outer packing: Carton with polythene on each side, strengthened with double straps