Sram XX1 Eagle Dub 12 speed group kit Sram XX1 Eagle Dub 12 speed group kit Kit includes: XX1 Eagle rear derailleur XX1 Eagle trigger shifter Non-Boost Sram XX1 Eagle DUB Crankset - available in 170mm or 175mm lengths Eagle XX1 hollowpin gold chain Eagle 10-50t XG-1299 gold cassette Chain gap gauge BB not included