OXO rear derailleur pulley with ceramic bearings is designed to be a economical way to upgrade the performance of your bicycle. Designed to be faster than your stock pulley wheels. Available in various colors and teeth to suit your needs and taste.

Specifications

Bearings: Hybrid Ceramic Bearings (White Ceramic Balls with Steel Races)

Compatible: Rear Derailleur with 4/5/6 mm Bolt Size