Vertex Forged Piston Top End Kit
05-07 Honda CR85RB Expert
Bore 47.5mm 47.45mm x 85mm STD
Pistons are heat treated with T-5 hardening and tempering cycles.
Piston Skirts are coated with a high-tech Molybdenum Zircon coating for faster intrusion time and increased piston life.
Pistons are forged from 2618 aluminum for superior strength and durability.
Forged high compression pistons increase power and torque throughout the range of revolutions.
Top-end piston kits include pistons, rings, pins, circlips, and top-end gaskets. (Some kits include wrist pin bearings, and cam chain. )