Wide link design wide pivot link for greater torsional rigidity improves shifting response and service life hyperdrive compatible the sg x front derailleur sg x crankset provide a high performance front drivetrain dual sis front index shifting dual pull multi clamp compatible with 44t and 48t top variations fd m530 3 top swing fd 63 66 degree fd m530 6 top swing fd 66 69 degree fd m531 3 down swing fd 63 66 degree fd m531 6 down swing fd 66 69 degree shimano deore m531 conventional 9sp