Weight: N.W./G.W. (Kg): 39/44 Max speed: 21 km/h Range per charge: 45 km Target user: Motor specification: 180W Battery specification: 36V12Ah Weight N.W./G.W. (Kg): 39/44 Dimension: 1690x700x1270 mm Max speed 21 km/h Tires diameter 20" Motor power 180W Battery capacity 36V12Ah Range per charge 45 km Carton Dimension 780x500x720 mm Hub type: nylon wheel Optional: Box, Basket, Rearview mirror, Head cover, Taillight