... weight mountain electric bike with 36V/20Ah li-ion battery, .--- EN15194 approval Light weight mountain electric bike with 36V/20Ah li ... -ion battery.--- EN15194 approval MotorRear wheel motor ,brushlessFrame6061 aluminium alloy. 26"180W - 250W ... mountain electric bicycle with 36V/20Ah and 2 year warranty,EN15194 certificate