The XX1 Eagle 12-Speed rear derailleur sits at the top of SRAM’s mechanical mountain bike range and offers the ultimate in mechanical 1x shifting performance. This is the next evolution of SRAM’s proven 1x drivetrains, featuring their proven 1x specific X-HORIZON™ design to provide the same precise, reliable performance proven time and again on the world cup circuit. The larger, 14-tooth X-SYNC™ lower pulley easily facilitates 10- to 50-tooth cassette capacity, and also adds to XX1 Eagle's overall smooth-pedalling feel and platform. The new and updated Type-3 ROLLER BEARING CLUTCH™ features a smoother torque curve to provide quiet, consistent performance and durability no matter the terrain.
