Piston Kits typically include the necessary quantity of pistons, rings, wrist pins, and circlips for your machine (varies by number of cylinders). Some kits may include additional components such as a head gasket, or even a replacement cylinder (some motocross applications). Special order or custom pistons may require additional processing time. Orient Express is proud to offer one of the largest selections of pistons for powersports applications. Some kits may require additional machining or cylinder boring - please contact us if we can provide this service for you.