SRAM RED eTap AXS Rear Derailleur D1 33T, 44T XPLR, 12speed option:44T while a longer hood body

while a longer hood body increases hand support

58% faster than RD-R9150Compact design includes an integrated wireless unit

and proficient in shock absorption

World Cup-proven performance

And for unrivaled ease of customization

SRAM RED eTap AXS Rear Derailleur D1 33T, 44T XPLR, 12speed option:44T while a longer hood bodyFEATURES SRAM AXS enabled for easy personalization Orbit chain management technology keeps drivetrain quiet and secure Compatible with both 1x and 2x drivetrains 36t max derailleur is compatible with 10 36, 10 33, and 10 28 cassettes 33t max derailleur is compatible with 10 26, 10 28, and 10 33 cassettes Improved motor and signal travel for faster shifting Large X SYNC pulleys and ceramic bearings for increased durability and efficiency Compatible