Shimano (Cycling) DEORE XT FD-M8100 Front Derailleur 2 x 12-Speed Bnad IFDM8100MX6

Side Swing / Front Pull Attachment: Clamp Band 34.9mm , 28.6 mm, 31.8 mm Compatibility: 2x 12-speed Shimano Largest chainring (Outer gear):36-38 teeth Max. Front difference (capacity) :10 teeth Chainline: 48.8mm non-boost , 51.8mm boost Chain stay angle :6