Now you can use wide-range cassettes (up to 50T) with your GRX rear derailleur. 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 the Garbaruk 11-50T 11-speed model.

- 7075-T651 Anodized Aluminum Alloy
- 47g

IMPORTANT: The cage is to be used in 1x setup only with the listed compatible rear derailleurs.

Compatible rear derailleurs:
Shimano 11-speed: RD-RX812 (GRX)