The handlebar clamp features the new window design that was first implemented on the AKA stem

Freehub mounting style: The XT CS-M771 series cassettes utilise the Shimano HG Spline freehubs

2016 and 26" Enduro 2014

10-44 GS/SGS Derailleur (Wolf Tooth GCX44)

Hayes IS Frame To Post Caliper Brake Mount - R 160-160mm Virtual Parent The handlebar clamp features theThese adaptors are designed to work with rear brakes on frames with IS (International Standard) style brake mounts. Who's this item for: If you are running Hayes Dominion brakes you will need to use these adaptors as ones made by other brands won't provide enough clearance for the calipers.