Product: E-bike kits -3 (lead acid battery) Model number: Kits-3 Front/RearWheel E-bike conversion kit It is easy to install on most of bikes within 20minutes! Specification: 1).wheel size :24" or 26" or 28" Front /Rear wheel including rim, tire, tube, spoke 2).Motor:180watt, 200watt, 250watt, 300watt, 500watt DC, brushless, quiet and maintenance free,water proof 3).Motor controller: 1:1 pedal assist 24V or 36V or 48V 4).Battery: 24V 12Ah or 36V,12AH/17AH/20AH or 48V,12AH/20AH Lead sealed acid battery 5).Smart charger: 24V or 36V or 48V AC110V-230V 50Hz/60Hz Recharge time: Lead acid battery: >350 times 6).Brake handle(left/right) 7).Twist throttleand handle bar (left/right) 8).Front light with battery indication 9).Battery box/case including key switch, charger plug and fixed rope 10).Rear rack for bicycle and to fix battery bag 11).Electric Wire 12).Instruction manual