Jockey Rear Derai. Tooth Options: 11T / 12T / 13T / 14T. Available in11T / 12T / 13T / 14T to match your setup. Keep your drivetrain running smoothly with thisrear derailleur jockey wheel pulley, designed for9/10/11/12-speed bikes.
2PCS 11T 12T 13T 14T Derailleur Ceramic Bearing Jockey Wheels MTB Bicycle Road
11T 12T 13T 14T Bearing MTB Bicycle Rear Guide Wheel Road Bike Jockey Rear Derai
Niceminiwall Steel Cassette Cog for 8/9/10/11-Speed Road and Mountain Bikes – 11T/12T/13T Narrow-Wide Tooth Design, Lightweight, Low-Noise Freew(10S 13T)
