4HP AC Commercial Motorised Treadmill. AC driving system with adjustable variable frequency. 4.0 HP AC continuous (8.0 HP Peak) motor. 23"x60" running surface. Speed: 1~20 km/h. Precise incline control from 0~15%. Extra heavy duty steel base with double cell neoprene rubber system. Anti static 25mm double faced running board. Maximum User Weight: 160 Kgs.