Seller notes

Wiseco Piston Kit 97.00mm 13.0:1 YAMAHA YZ450F WR450F YZ450FX Lightweight forging for instant throttle response and maximum torque . Computer engineered piston skirt profiles provide minimal cylinder wall friction . Piston kit includes piston, rings, wristpin and circlips. Specs: Oversize: Standard Bore Size: 97.00mm Compression Ratio: 13.0:1 Fits the following models: YAMAHA WR450F 2021-2023 YAMAHA YZ450F 2020-2022 YAMAHA YZ450FX 2021-2023...

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