CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK MFPN=8030819393767 it is applied over base

it is applied over base wax or mixed

5-75mm travel) 425lb Black

Bottom bracket cups sold separately Rings 45/29 Number of Chainrings Double Drivetrain Speeds 12 Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Color Carbon Crank Length (mm) 172

Remove adapter to fit older Pedros grease tubes and other tubes

CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK MFPN=8030819393767 it is applied over baseCeramicSpeed 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