New NX Eagle trigger shifter means on-demand gear selection throughout the entire wide range Eagle cassette Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents Compatible with all other Eagle 12 speed components Matchmaker clamp included Right 12s 1 to 1 BlackUPC/EAN/GTIN: 710845818004