AT-D3 Specifications:F/18" R/18" Frame: Full Alloy Folding Frame Front fork: Alloy Brake:F/V Brake,R/Band Brake Deraille:18T Unfold Size:153.6CM After folding:79.8*39*71CM N.W/G.W:18.7kg/20kg Lithium Battery The tallest hour is soon: 35km/h Mileage: 35km--40km Capacity: 10AH Electrical engineering Type:High speed Power:250W Revolve the speed:282r/min Electric: DC 36V