Shimano GRX RD-RX820 后拨链器 12速 中等 笼 黑色

Improved chain security and quieter shifting when riding on gravel

With its integrated chain stabilizer and center cage, the SHIMANO GRX rear derailleur ensures quieter shifting, better ground clearance and safer chain management on uneven terrain. The RD-RX822-GS is compatible with SHIMANO 10-45T and 12-speed MTB cassettes and the chain tensioner features an ON/OFF switch for easy wheel removal.

highlights

• Quiet and safe rear wheel shifting on rough terrain
• The adjustable chain stabilizer prevents the chain from hitting and falling
• SHIMANO SHADOW RD+
• Smooth and reliable shifting on mixed surfaces
• The ON/OFF stabilizer switch adapts to the terrain
• Upper sprocket: Max. 10T/Min. 10T
• Low Sprocket: Max. 45T/Min. 45T
• Total capacity: 35T
• Interchangeable, replaceable GS/SGS front derailleur cage

scope of delivery

• 1 x Shimano GRX RD-RX822 rear derailleur 12-speed medium cage (see item description for details)