To ensure effortless, rapid gear changes and consistent performance on the harshest terrain, the GRX 822 gravel bike rear mechanism boasts some of Shimano’s best technologies, which include:

Shadow RD+: Less distraction quiet drive train. Rear derailleur stabilizer reduces chain slap. A simple solution for chain drop. Lighter and more efficient than the roller type chain device.

Shimano Index Shifting System: The system constituents such as the index mechanism built in the shifting lever, the frictionless SIS rear index shifting cable and the smooth action rear derailleur realise the Shimano Index System.

• Cage Length/Type: Separate Short and long cage options
• Speed: Short Cage: 2x12-Speed; Long Cage: 1x12-Speed
• Mounting: Standard hanger mount or direct mount (DM)
• Clutch option: Yes
• Compatibility: Shimano drop bar 2x12-Speed components
• Compatible with 12-speed Hyperglide+ chains
• Short Cage: Wide gear ratio compatible up to 11-36T
• Long Cage: Wide gear ratio compatible up to 11-51T