... -4-5 12" Wheel,Hydraulic, Fully Adjustable shock. Water cooled 250cc Dirt bikeEngine TypeFour-Stroke, Single Cylinder, Water Cooled, Electric StartDisplacement243ml ... (250cc)Bore x Stroke69 x 65mmCompression Ratio10.5:1Max Power11.5kw / ... x 450 x 925mmContainer: 30pcs/20FCL 72pcs/40HQ Water cooled 250cc Pit Bike