Athena P4C0540118014A Top End Piston Kit with Gasket Kit for Yamaha 125 YZ 2005-2021 - 53.95 mm Cast 2-Stroke Piston Replacement Kit - Motocross Dirt Bikes Saw blade Our patented battery isolation system

Our patented battery isolation system provides a secure battery connection and controls vibration transmitted to the pack

and with 30 PSI

and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any complex machining or structural engine modifications to your factory crankcase

our frames deliver optimal power transfer and responsiveness

Athena P4C0540118014A Top End Piston Kit with Gasket Kit for Yamaha 125 YZ 2005-2021 - 53.95 mm Cast 2-Stroke Piston Replacement Kit - Motocross Dirt Bikes Saw blade Our patented battery isolation systemRestore your Yamaha 125 YZ engine performance with the Athena P4C0540077020A Top End Piston Kit. Designed specifically for Yamaha 125 YZ models from 2005 2021, this complete rebuild solution includes a precision engineered 53. 95 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