Shimano GRX RX810 / RX812 Rear Derailleur – 11-Speed Gravel Derailleur with Shadow RD+

For riders who go beyond.
The Shimano GRX RX810-series is purpose-built for gravel, cyclocross and adventure riding. Positioned at Ultegra/XT level, it merges mountain-bike durability with road-bike precision.

The Shadow RD+ clutch system stabilizes the chain, minimizes noise and prevents dropped gears — ensuring smooth, reliable shifting even on rough terrain.

Choose your version:

• RX810 (Medium Cage) – for 1× or 2× 11-speed setups, up to 34T cassette

• RX812 (Long Cage) – for 1× 11-speed systems with up to 42T cassette

Key Features:

• Shadow RD+ clutch for reduced chain slap and quieter rides

• Gravel-tuned spring tension

• Precise shifting performance under load

• PTFE-coated linkage pins for longer durability

• Lightweight aluminium and composite construction

Recommended setups:

• Compatible cassettes: Ultegra R8000, HG8000, XT M8000

• Chains: CN-HG701 / CN-HG601 (11-speed)