Shimano GRX RD-RX822-GS

With an integrated chain stabilizer mechanism, the GRX rear derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an on/off switch for the chain tensioner. The RD-RX822 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max. GRX 12 speed rear derailleur for 1x cranks Adjustable chain stabilizer prevents chain slapping and drops Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain Maximum front difference: 17T Total capacity: 42T Low sprocket: Max. 42T/Min. 40T Top sprocket: 11T Attributes Max Front Difference Single chainring only Maximum Cog 42T Minimum Cog 11T Primary Color Grey Cage GS RD Capacity 31T RD Spring Type Shadow Plus Speed 12 Mount Standard