Replica – Cast piston in original OE formAll pistons are heat-treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity-cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong pistonReplica pistons and all rings are OEM replacementsTop end piston kits include piston, rings, wrist pin, circlips and top end gasketsReplacement two-stroke piston rings sold individually four stroke piston rings sold as a set