Shimano GRX FD-RX820 12-Speed Double Front Derailleur

Shimano GRX FD-RX820 12-Speed Double Front Derailleur The Shimano GRX FD-RX820 12-Speed Double Front Derailleur offers lighter front shifting operation and easier setup thanks to its toggle link construction and integrated cable tensioner. Features include a 2.5mm outboard chain line design that provides wider tire clearance for mixed-terrain riding; and it accommodates a 17T front chainring range for wider gearing options.