- Big Bore Kit
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- Year
19 20 21 Yamaha YZ85 YZ 85 53m Athena 106cc Big Bore Cylinder Top End Piston Kit
Athena 53mm 106cc Big Bore Cylinder Top End Kit! Fits Yamaha YZ85 2 Stroke Dirt Bikes.
Years 2019 2020 2021 2022 2023 2024. 53mm Nikasil Athena Big Bore Cylinder. Athena 53mm Piston Kit (Includes, Piston, Pin, Rings & Clips). Athena Complete Top End Gasket Set.