Quick view Add to Cart Shimano Shimano RD-RX817 GRX Di2 1x11 Speed Shadow+ Gravel Electronic Rear Derailleur GS MSRP: $2,797.39 Compare
Quick view Add to Cart Shimano Shimano RD-RX815 GRX Di2 11 Speed Shadow+ Double Gravel Electronic Rear Derailleur SGS MSRP: $2,522.91 Compare
Quick view Choose Options Shimano Shimano RD-RX827 GRX Di2 12 Speed Shadow ES Rear Derailleur SGS For 51T single MSRP: $4,222.80 Compare
Quick view Add to Cart Shimano Shimano RD-RX825 GRX Di2 2x12 Speed Shadow+ Wireless Rear Derailleur MSRP: $2,934.63 Compare
