Features: Off-Road Motorcycle and ATV The most comprehensive line of Off-Road and ATV Swingarm kits available anywhere One kit does it all! All of the bearings, seals, shafts, bushings, thrust bearings (if required) in one all inclusive kit in order to do the job correctly and completely All bearing shafts manufactured with 52100 bearing steel that is hardened and centerless ground for a precision fit and extended wear All steel spacers are casehardened and plated for resistance to wear and corrosion No more hunting around for missing pieces costing you time and extra money Needle thrust bearings have been replaced with Teflon? bearings. Designed to live longer in water and dirt Designed To Fit: 2009 Yamaha YFZ450R 2010 Yamaha YFZ450R 2010 Yamaha YFZ450X 2011 Yamaha YFZ450R 2011 Yamaha YFZ450X 2012 Yamaha YFZ450R 2013 Yamaha YFZ450R 2014 Yamaha YFZ450R 2015 Yamaha YFZ450R 2016 Yamaha YFZ450R 2017 Yamaha YFZ450R 2018 Yamaha YFZ450R 2019 Yamaha YFZ450R 2020 Yamaha YFZ450R 2021 Yamaha YFZ450R 2022 Yamaha YFZ450RManufacturer Part Number: 27-1175