Fulcrum OS Axle HG11 Freehub Body 42 giving you cleaner shifting performance

giving you cleaner shifting performance and longer component life

Roller Bearing Clutch delivers maximum drivetrain stability even through the most punishing terrain

Optional eBike Ramp and selective bike unloading

SRAM 10 and 11 speed cassettes with 11 tooth cogs have the smallest cog located behind the cassette in the packaging

Engineered with the right materials for the application

Fulcrum OS Axle HG11 Freehub Body 42 giving you cleaner shifting performanceFulcrum Freehub Bodies FEATURES: For use with Shimano and SRAM 8, 9, 10 and 11 speed cassettes For use with Fulcrum and Campagnolo wheels that use OS type axles and angular contact bearings Also known as Fulcrum RS 113, identical part Replaces FH BUU015X, WH KX890, WH KX89 and RS 013 Use in conjunction with HU9849 (FH BO001) on hubs wheels with non cutout axles Fits Campagnolo Bullet Ultra, Hyperon, Bora, Eurus, Neutron, Shamal, Zonda, 2013 and later