YFZ450R YFZ 450X Big Bore Kit 480cc +3 Cylinder 98mm Piston Top End Rebuild Kit RZR Pro R - Works for big bore

- Works for big bore sizes: 86mm

make your clutch low maintenance

YAMAHA YZ450FX

this piston kit will transform your YFZ450 into a high-output beast

YFZ450R YFZ 450X Big Bore Kit 480cc +3 Cylinder 98mm Piston Top End Rebuild Kit RZR Pro R - Works for big boreBPRATV YFZ450R YFZ 450X Big Bore Kit 480cc Fits Yamaha YFZ450R & YFZ450X Fuel Injected Models ONLY Years 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 BPRATV 98mm big bore nikasil cylinder (1 year warranty)* Wiseco, CP Carrillo, or JE forged big bore piston kit Nitrite coated piston rings Chrome wrist pin Circlips Cometic Top End Gasket Kit Cometic big bore MLS head gasket BPRATV Talon Timing Chain Maxlock TITANIUM