CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK MFPN=11.4118.073.010 6mm Length 292mm Weight 425g

6mm Length 292mm Weight 425g Color Black Travel 75Mm

The 350 hub with its rolling efficiently helps you remain in the acceleration phase

ShiftersShimano GRX RX-820

Most sockets have either a Shimano bearing preload tool or a 16mm hex for use with Race Face Cinch cranksets

CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK MFPN=11.4118.073.010 6mm Length 292mm Weight 425gCeramicSpeed pulley wheels reduce friction last 3 5 time longer than stock high end pulleys and are designed to work with less drag. Premium Grade 3 Silicon Nitride Ceramic balls Hand built in Denmark Drivetrain Speeds 11 Fits Brand Shimano