HDC 4.0HP Mini Bike 54???L x 27???W x 32???H, 38??? Wheelbase, Max. Speed: 22MPH Payload: 170lbs, Wheels: 4.00 ??????? 8, Brake type: Drum Gas tank capacity: .52 gallon, Oil tank capacity: 0.6 quart, Drive: centrifugal clutch Cylinder bore x stroke: 2.36???x0.58???, PTO shaft rotation counterclockwise, Max output 4.0HP/400 Max torque: 3200RPM, Idling speed: 16MPH, Displacement of cylinder: 118CC, Spark plug: F6TC