OSPW for Campagnolo 11-speed EPS & Mechanical

The CeramicSpeed Oversized Pulley Wheel System for Campagnolo provides a 40% lower friction over a standard 11-tooth Campagnolo pulley wheel. Compatible with all Campagnolo electronic and mechanical 11-speed rear derailleurs. 13-tooth/19-tooth aluminum pulleys with Standard or Coated CeramicSpeed Bearings.