Shimano GRX FD-RX820-F Front Derailleur – 12-Speed Double Braze-On Down Swing Down Pull 48t Max. The Shimano GRX FD-RX820 front derailleur offers lighter front shifting operation and easier setup thanks to its toggle link construction and integrated cable tensioner. Features include a 2.5 mm 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.

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