Shimano GRX RD-RX810 Rear Derailleur Tension and Guide Pulley Set Bells Why Is the Shimano CN-6600-10

Why Is the Shimano CN-6600-10 the Correct Chain for Ultegra 6600 Drivetrains

giving riders ample range for varied terrain without needing a clutch system -- Shadow RD's compact form factor reduces the risk of damage from impacts without adding the weight or engagement resistance of an active clutch mechanism

and placing

and compatibility with standard HG freehub bodies means it fits the broadest range of 8-speed rear wheels

and for good reason

Shimano GRX RD-RX810 Rear Derailleur Tension and Guide Pulley Set Bells Why Is the Shimano CN-6600-10Does the Shimano GRX RD RX810 Pulley Set Restore Quiet Gravel Shifting? The Shimano GRX RD RX810 tension and guide pulley set is the OEM replacement for both pulleys in the GRX RD RX810 11 speed gravel rear derailleur, featuring precision sealed bearings in both the guide and tension pulley wheels for smooth, low friction chain operation. The asymmetric pulley design reduces chain noise an important detail for gravel riders who spend long hours on