The mechanical Shadow RD+ rear derailleur stands for reliable and quiet shifting performance in gravel riding. Designed for 2x12-speed drivetrains, the Shimano GRX RD-RX820 rear derailleur offers a wide gear range when combined with cassettes featuring 11–34 teeth (CS-R8101-12, sold separately) or 11–36 teeth (CS-HG710-12, sold separately), allowing a comfortable cadence across varied terrain.

The highlight of the Top Normal rear derailleur is the integrated chain stabilizer. It ensures improved chain retention on changing surfaces and noticeably quieter shifting. Whether riding on rough gravel roads or slippery terrain, the adjustable chain tensioner can be activated or deactivated via a switch as needed.

Weight: 270 g

Compatibility:
STI levers: ST-RX820, ST-RX610, ST-R7120
Cassette: CS-R8101, CS-R7101, CS-HG710
Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
Manufacturer recommendations, list not exhaustive