Top End Kit Pro Lite 66.40/Std Yam 1992 Yamaha YZ250 Designed to perform in EXTREME

Designed to perform in EXTREME conditions from sloppy dirt or sand to logs

Standard Rotor Brake Discs

The R‑304 silencer features a compact design that delivers strong performance gains

Larger gear teeth for higher torque capabilities and added strength

Top End Kit Pro Lite 66.40/Std Yam 1992 Yamaha YZ250 Designed to perform in EXTREMEWiseco's complete top end Piston Kits are offered for nearly every popular motorcycle application. These kits contain everything you need to complete your rebuild the right way, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. Features: Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including