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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Utilizes all stock sensors
Balances power enhancements into a lightweight extruded aluminum oval canister design
Additional Pinlock MaxVision shield and Pinlock anti-fog insert included
Integrated multi-function red LED rear light included
1983-1985 Honda XL80S
Athena P400485100068 Big Bore Cylinder Kit (496cc) - 102.00mm, 12.2:1 Compression engine-gaskets-seals-base-gaskets Utilizes all stock sensorsKits include aluminum cylinder with nickel carbide coating designed with larger water jackets. Includes Forged piston, rings, clips and pin. Athena top end gasket set includes required seals and hardware. Easy to follow step by step installation instructions. Most are bolt on; no machining required except where noted. Vehicle Fitment: 2018 2021 Yamaha YZ450F
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