Extra range for your 11-speed Road/CX Shimano GRX Di2 rear derailleur
Now you can use wide-range cassettes (up to 50T) with your Road/CX GRX rear derailleur. Just in few simple steps you can enhance the performance and shifting quality of your standard rear mech. Moving the upper derailleur pulley closer to the smallest cassette cog, and lower one further away from the largest cog allows your regular GRX derailleur to operate seamlessly with wide-range cassettes, like Garbaruk 11-50T 11-speed model.
Unmatching performance and unique visual experience
Coupled with Garbaruk oversized derailleur pulleys, this solution provides smoother drivetrain operation and more precise shifting. Also go for the unique cage+pulleys combo if you're looking for a way to make your bike drivetrain stand out like nobody else's does. These RD cage for Shimano GRX works with RD-RX817 rear derailleur and may be coupled with Garbaruk 11+16T derailleur pulleys set
7075-T651 Aluminum Alloy
Compatible rear derailleurs
Shimano 11-speed: RD-RX817 (GRX Di2)