Athena P4C0540118014B Top End Piston Kit with Gasket Kit for Yamaha 125 YZ 2005-2021 - 53.96 mm Cast 2-Stroke Piston Replacement Kit - Motocross Dirt Bikes Motorcycle Tires Compatible with exhaust systems

Compatible with exhaust systems

and CRF-X models (04–Up)

Designed with the specific needs of 50cc senior dirt Bikes with Hoosier Keychain in mind

Specifically engineered for Flat Track bikes

Athena P4C0540118014B Top End Piston Kit with Gasket Kit for Yamaha 125 YZ 2005-2021 - 53.96 mm Cast 2-Stroke Piston Replacement Kit - Motocross Dirt Bikes Motorcycle Tires Compatible with exhaust systemsRestore your Yamaha 125 YZ engine performance with the Athena P4C0540077020B Top End Piston Kit. Designed specifically for Yamaha 125 YZ models from 2005 2021, this complete rebuild solution includes a precision engineered 53. 96 mm cast piston and matching top end gasket kit for reliable sealing and long lasting durability. Athena develops and tests its piston technology and gasket components together to ensure optimal compatibility, improved