SRAM GX Eagle Groupset - 175mm Boost Crankset, 32t, DUB, Trigger Shifter, Rear Derailleur, 12-Speed 10-50t CassetteSRAM, DUB British 73mm, External Cup BB, British, 73mm, 28. 99mm SRAM, GX EAGLE XG 1275, 12sp. Cassette, 10 50T SRAM, PC GX Eagle, Chain, 12sp., 126 links SRAM, GX Eagle DUB C1, Crankset, Speed: 11 12, Spindle: 28. 99mm, BCD: Direct Mount, 32, DUB, 175mm, Black, Boost SRAM, GX Eagle B2, Rear Derailleur, Speed: 12, Lunar SRAM, GX Eagle, Trigger Shifter, Speed: 12, Combination: MatchMaker X, Black