Shimano's GRX Di2 gravel groupset combines servo motors and the brand's HG+ cassettes for clean, crisp and fast shifting and ...
It is 11-speed only, but compatible with any of Shimano’s other 11-speed road shifters ... 100 gravel race on an Allied Alfa All-Road bike equipped with the new Di2 Ultegra RX805 rear derailleur. By ...
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