SRAM GX Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar Weight-156 For carbon frames that feature

For carbon frames that feature aluminum inserts (with a carbon/aluminum hybrid mounting surface) use the #2197

promising to age and break in with each passing year

Compatibility: Wolf Tooth Rear Axles (not compatible with rear axles from other manufacturers)

}e*thirteen Helix Race Cassette - 12-Speed 9-52t Bronze

SRAM GX Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar Weight-156 For carbon frames that featureSRAM GX Eagle Rear Derailleur 12 Speed Long Cage 52t Max Lunar. The GX Eagle Rear Derailleur gets the job done with a thoughtfully designed cage architecture that improves chain management. Mounting system and re positioned Cage Lock offer greater durability Sealed cartridge pulley bearings TECH SPECS Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM X Actuation Cage Length Long Drivetrain Speeds 12 Color Lunar Chain Wrap