Shimano Black Shimano GRX RX822 Shadow+ SGS rear derailleur 2025

With its integrated chain stabilizer and medium cage, the SHIMANO GRX rear derailleur delivers quieter shifting, better ground clearance and more secure chain management in rough terrain. The RD-RX822-GS is compatible with 10-45T, 12-speed SHIMANO MTB cassettes, and the chain tensioner has an ON/OFF switch for easy wheel removal.

• Silent and secure rear shifting on rough terrain
• Adjustable chain stabilizer prevents chain slap and drops
• SHIMANO SHADOW RD+
• Smooth and reliable shifting on mixed surfaces
• ON/OFF stabilizer switch matches terrain
• Total capacity: 35T
• Interchangeable, replaceable GS/SGS derailleur cage
• Compatible chain: HG 12-speed
• Mount: Direct attachment (conventional)
• Cable adjuster
• Total capacity: 41T
• Low sprocket: Max. - 45T, Min. - 45T
• Top sprocket: Max. - 10T, Min. - 10T
• Guide pulley bearing
• Tension pulley bearing
• Teeth: 13T
• B-axle: Hollow axle
• Average weight: 290