... Model:LC170MM-2 Type:250CC Dirt bike Engine 200cc,Motorcycle engine,4-stroke,vertical,water-cooled Displacement:249 ... the piston ring more durable and reliable. Larger radiator fins are used to improve heat dissipation. The ... of slipping.--------------------------------------------------------------------- 250CC Dirt bike Engine ,Motorcycle engine,Loncin Engine,single cylinder,4-stroke,water cooled