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11 speed Size: 54
Bottom bracket: Fazua Isis axle
Rubber mount for installing Shimano internal Di2 battery into seatposts without mount option as standard
Silicone grip
Integrated Cinch Pro™ MIPS system allows more dispersed contact points around the head for all-day comfort and precise adjustment
Bontrager RX-342 11-Speed Road Freehub Body Cycling Shoe 11 speed Size: 54When 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
