Core Manual TorqDrive Clutch The best manual clutch available, period. Core Manual TorqDrive delivers unprecedented performance, tuning and durability. TorqDrive provides more disks in less space, allowing us to add up to 4 additional frictions disks over stock. More frictions = more torque capacity thus unlocking the full power of your engine without the need to add stiffer pressure plate springs. Proven in racing at the highest levels, its not just good, its rEvolutionary Championship proven results 2018 450 SX Champion Jason Anderson. 2018 250 SX and MX Champion Aaron Plessinger Improves power delivery and drive Virtually eliminates clutch fade Provides more consistent clutch lever feel and behavior Can be setup to maintain a stock, or lighter than stock, lever pull depending on engine tuning Rekluse sleeves eliminate basket wear and notching Please be sure your model/year is listed below before purchasing. Fits: Yamaha YZ450F 2010 Yamaha YZ450F 2011 Yamaha YZ450F 2012 Yamaha YZ450F 2013 Yamaha YZ450F 2014 Yamaha YZ450F 2015 Yamaha YZ450F 2016 Yamaha YZ450FX 2016 Yamaha WR450F 2016 Yamaha YZ450F 2017 Yamaha YZ450FX 2017 Yamaha WR450F 2017 Yamaha YZ450F 2018 Yamaha YZ450FX 2018 Yamaha WR450F 2018 Yamaha YZ450FX 2019 Yamaha YZ450F 2019 Yamaha WR450F 2019 Yamaha YZ450F 2020 Yamaha YZ450FX 2020 Yamaha WR450F 2020 Yamaha YZ450F 2021 Yamaha WR450F 2021 Yamaha YZ450FX 2021 Yamaha YZ450FX 2022 Yamaha WR450F 2022 Yamaha YZ450F 2022 Yamaha YZ450FX 2023 Yamaha WR450F 2023 Fit:Rekluse xls This fitment information is based upon the stock version of the unit referenced and any accessory added or other modification could invalidate the quick reference information provided.