Shimano GRX RD-RX812 11-Speed Rear Derailleur 2026specspringsale Handlebar clamps to be tightened

Handlebar clamps to be tightened with equal gaps on top and bottom

adaptable and comfortable for any length adventure

pin colours and enhanced graphics

Polygiene StayFresh™ Antibacterial Technology

Shimano GRX RD-RX812 11-Speed Rear Derailleur 2026specspringsale Handlebar clamps to be tightenedDetails With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience with shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain stabilizer. The RD RX812 rear derailleur is compatible with MTB cassettes with a max cog size of 42T. Adjustable, gravel tuned chain stabilizer prevents chain slapping and drops Switch stabilizer ON OFF