- Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world
- Low profile Shadow Plus design 11-speed rear derailleur with Di2 technology for fast and precise shifting performance
- Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
- High tolerance cold forged aluminium link plates and body construction is extremely light and durable
- 11-speed E-tube Di2 compatible
- Compatible with 11-speed HG chains
- Wide gear ratio compatible up to 11-42T
- For use with single chainset
- Weight: 318 g
Shimano GRX
Rd-Rx817 Grx Di2, Rear Derailleur 11 Speed, Shadow+ Single
£309.99