Adult Electric ATVS 4000W 72V Quad Bikes with Lithium Battery Model: four wheel atv4kw02 Product Description: Motor Power:4000W 72V or 2200W 1800W 1500W 72V / 60V Motor type:Differential motor,Shaft Drive Transmission Battery:32AH lead acid battery,or lithium battery option Controller;Smart brushless controller Max speed:85KM/H with 4000W motor on road Range:30km, stronger battery more range Wheels size:10 inch or 12 inch option Charging time:7~9 hours Max loading:250 kgs