DID JT Chain Kit 428NZ 14 50 Standard Standard Rear Sprocket Replacement parts: Piston ring: 271257 Replacement parts: Piston ring: 271257 – Piston: 257009DA – Engine top gaskets: 601289 Included Components : Ring Set #2126CS Rely on proven quality for your motorcycle with this high quality chain set consisting of a standard steel sprocket and a