SRAM NX Eagle 12Spd Rear Mech - SGSSRAM NX Eagle 12Spd Rear Mech SGS This new NX Eagle derailleur features the proven SRAM 1x specific X HORIZON design. The larger, 14 tooth X SYNC lower pulley easily facilitates 11 to 50 and 10 to 50 tooth cassette capacity, and also adds to NX Eagle's overall smooth pedalling feel. The Type 3 ROLLER BEARING CLUTCH provides quiet, consistent performance and durability. THINGS TO REMEMBER Eagle technology provides an expanded, optimum, gear range