Rear derailleur Sram Red AXS E1 12S

The heart of the AXS ecosystem is lighter, more efficient and better performing than ever. Covering cassette ranges from 10-28to 10-36T, this wireless marvel has larger pulleys to increase drivetrain efficiency and an Orbit fluid damper to keep everything in place on rough terrain. A derailleur ready for 1x or 2x, on or off road.Features: Orbit chain management technology keeps the transmission quiet and safe. AXS system for easy configuration, customisation and reliability. 16 g lighter than the previous generation. Compatible with 1x and 2x transmissions. Compatible with cassettes from 10-28 to 10-36T. Larger X-SYNC pulleys for greater efficiency. Compatible with existing AXS batteries.