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ATHENA YFZ450R YFZ 450R 98mm 478 14.25:1 CP RACE Piston Big Bore Cylinder Kit
ATHENA YFZ450R YFZ 450R 98mm 478 14.25:1 CP RACE Piston Big Bore Cylinder Kit
Fits Yamaha YFZ450R & YFZ450X Fuel Injected Models
Years 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
This Complete Big Bore Top End Kit Includes:
98mm Big Bore Nikasil Plated Cylinder
Larger Water Jackets For Better Cooling!
14.25:1 Piston Kit (Includes Piston, Rings, Pin & Clips) (Must Use Race Gas)
Complete Top End Gasket Kit