CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK CheckoutTitle=RockShox Coil Spring Includes steel-backed organic pads and

Includes steel-backed organic pads and MatchMaker X clamp

The 13-tooth upper and 19-tooth lower Alpha pulley wheels feature ADR (Active Debris Remover) bearing protection that completely encloses the bearings

Easily attaches to valves for hands free usage using the Prestacycle Lever Lock

Weight    1100 g/pair (size 42)

CeramicSpeed Pulley Wheels Shimano 11-Speed - 12 Tooth Narrow Wide Alloy BLK CheckoutTitle=RockShox Coil Spring Includes steel-backed organic pads andCeramicSpeed 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