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. Honda CRF450X 2005 Honda CRF450X 2006 Honda CRF450X 2007 Honda CRF450X 2008 Honda CRF450X 2009 Honda CRF450X 2012 Honda CRF450X 2013 Honda CRF450X 2014 Honda CRF450X 2015 Honda CRF450X 2016 Honda CRF450X 2017 Honda CRF450X 2018 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.