sram groupset mtb gx eagle gx eagle 1DUB, 1x12 speed Specifications Bottom Bracket None Brand SRAM Cassette XG 1275 10 52T Chain PC GX Eagle, hollow pin, 126 links Chainring 32T, direct mount, X Sync Crankset DUB, 175 mm Front Derailleur Not incl. Item Name GX Eagle Item Type Groupset, MTB Other Chaingap gauge Package '1 1 Rear Derailleur 12 speed, long cage, 52T max Series Name GX Eagle Trigger 1x12 speed with discrete clamp