Seller notes

Wiseco Piston Kit 95.00mm YAMAHA YFZ450 YFZ450R YFZ450X 2004-2021 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: 95.00mm Compression Ratio: Standard Special Notes:Compression Ratio:For the YFZ450 04-05 it is 12:1For the YFZ450 06-11 it is 11.4:1 Fits the following models: YAMAHA YFZ 450 2004-2009 ...

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