Seller notes

Athena Forged Piston Kit This item fits the following models: Yamaha WR250F 2018 Yamaha WR250F 2017 Yamaha WR250F 2016 Yamaha WR250F 2015 Yamaha YZ250F 2018 Yamaha YZ250F 2017 Yamaha YZ250F 2016 Yamaha YZ250F 2015 Yamaha YZ250F 2014 Type: Piston Kit Style: Forged Size: 81.96mm Bore: 81.96mm Packaging: Kit Material: Silicium Compression Ratio: 12.5:1 Sold as: Kit All pistons are forged using a precision heat-treatment process that allows for production tolerances of just .005mm Forged piston kits...

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