Big Bore kit include a nickel carbine coated cylinder design with wider water jackets, complete piston kit and a top end gasket set.

• All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
• Forged Big Bore pistons increase engine’s displacement, torque, and peak horsepower
• All pistons are heat treated with a T-5 hardening and tempering cycle
• Kits include piston, rings, wrist pin and circlips

477cc Comp 12.0.1