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22-25 Yamaha YZ125 YZ 125 58mm 144cc Athena Big Bore Cylinder Top End Piston Kit
Athena 58mm 144cc Big Bore Cylinder Top End Kit! This is the best and most reliable big bore kit on the market! Fits Yamaha YZ125 2 Stroke Dirt Bikes.
Years 2022 2023 2024 2025. Also Fits Yamaha YZ125X Years 2023 2024 2025. 58mm 144cc Nikasil Athena Big Bore Cylinder. Athena 58mm Coated Piston Kit (Includes, Piston, Pin, Rings & Clips).
Athena Complete Top End Gasket Set.