Kogel Kogel Kolossos Derailleur Pulley Sram Rival eTap AXS Black

Upgrade for 12-speed Sram Rival eTap AXS derailleurs. Built to offer extremely low friction paired with increased stiffness for loss free shifting. Long tooth profile on lower pulley offers best possible chain retention. Lower pulley assembly features a chain catcher to prevent jams. Can be used dependably on or off road. Oversized 14 and 19 tooth Kogel pulleys