Please measure your cylinder to check clearance before ordering. Durability, longevity and increased horsepower. Innovative forging design and piston skirt provide maximum horsepower and torque. Lightweight wrist pins enable faster revs and quicker throttle response. Premium materials produce the best sealing technology available, exceeding O.E.M. standards. Precision machined, highest quality materials for strength and reduced friction; extended life and sustained power. Dedicated forging, CNC-machined; consistently true and durable. Superior strength / weight ratio utilizing Aerospace alloy. Race-proven designs. Chosen by top race teams, in all forms of racing. Premium top end needle bearing. High-performance ring set. Highest quality, alloy pin. Sold complete with rings, wrist pin and circlips.