Bontrager RX-342 11-Speed Road Freehub Body Cycling Shoe Bottom bracket: Fazua Isis axle

Bottom bracket: Fazua Isis axle

Conquer every mountain

Special teeth pattern for quick shifting performance

Integrated Cinch Pro™ MIPS system allows more dispersed contact points around the head for all-day comfort and precise adjustment

Updated tubeless technology lets you ride faster and smoother

Bontrager RX-342 11-Speed Road Freehub Body Cycling Shoe Bottom bracket: Fazua Isis axleWhen it's time to refresh your trusty bike, Trek genuine replacement parts have you covered. Product details Original equipment replacement freehub for RX 342 hubs Can also be used to upgrade RX 142 hubs Requires RX 342 Axle Kit when installed on RX 142 hubs