Description & Size Guide
Piston Kit (Forged Big Bore)Pro-BB – Forged piston in original OE form for big bore cylinder All pistons are heat-treated with a T-5 hardening and tempering cycle
All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
Forged pistons are forged from 2618 aluminum for superior strength and durability
Big Bore pistons increase engine’s displacement, torque, and peak horsepower
Kits include piston, rings, wrist pin and circlips
Replacement two-stroke piston rings sold individually; four stroke piston rings sold as a set Piston diameter: 79,7 mm
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