Alomejor Rear Derailleur Pulley Bike Jockey Wheel Pulley 2pcs Ceramic Pulley Rear Derailleur Guide Roller Part Jockey Wheels for Mountain Bike Road Bike(11T-Red)

Anodized CNC machined bicycle jockey wheel with fully rubber sealed bearing for center bolt derailleurs. It run on smooth ball bearings, fits for most of rear derailleur on the market, support 7/8/9/10 speed. Rear derailleur pulley is a necessary accessary for your bicycle. It offers you a better cycling experience.Features: ?LIGHTWEIGHT AND DURABLE?Bike jockey wheel pulley is made of cnc alumi...