... 28"700C7-10KG48v KIT 7-1OKG Electric system MotorFront/rear wheel,light,high speed,brushlessGreat hub motor,16''-28i'' wheel optional.DISC ... ion batteryd,36v,10ah frame Li-ion batteryAll battery with electric protection circuitChargeAC100v-240v,2 amps smart chargerComponenta.Normal setPAS1: ... systemwhole system for display ,throttle,brakepasnew design controller brushless electric bicycle engine kit