Sram eTap version fits 12 speed Sram Red and Force Etap AXS derailleurs
Also compatible with (post Sep. 2020) Red eTap A2 11sp derailleurs with the Hydro Clutch, NOT compatible with the original (pre Sep 2020) 11 speed etap derailleur
Besides reduced friction, this cage is built with shifting accuracy, gravel worthiness and chain retention in mind
Long tooth profile on lower pulley offers best possible chain retention
Lower pulley assembly features a chain catcher to prevent jams