Pulley set for rear derailleurs. You ride. You ride so much you've worn out your derailleur pulleys. Don't fret, we have a fresh new Shimano XT M786 - M773 Derailleur Pulley Set for your bike. Defined pulley teeth are critical to your drivetrain's performance. These make an effective upgrade to lower-level derailleurs, too. Each pulley spins on a sealed cartridge bearing for minimal friction. This pulley set is Dyna Sys 10-speed compatible.
