Rear derailleur pulleys 12 Speed SRAM XX1/X01 EAGLE X-SYNC (x2)

These rollers very high-end pebbles offered by SRAM are designed for the derailleur Eagle 12-speed rear derailleur XX1 and X01. They feature smooth-running, long-lasting steel bearings.
 
Above all, these rollers benefit from X-Sync 2 technology. An evolution of X-Sync, X-Sync 2 provides better chain retention for smoother, more efficient pedaling. It also guarantees greater longevity, and reduces friction and the build-up of mud, gravel and dirt.