Deepen the tooth marks to reduce the chain loss, optimize the inclined tooth shape, and synchronize with the chain transmission direction, so that the chain entry and chain release are smooth. Material: Aluminum alloy + ceramic.
Pro Ceramic Bearing Bearing Guide Wheel 12/14T J Aluminum Alloy + Ceramic
Ceramic Bearing Bearing Guide Wheel MTB Road Bike 12/14T J 4/5/6mm CNC
Ceramic Bearing Bearing Guide Wheel MTB 4/5/6mm Pulley Rear Derailleur
Ceramic Bearing Bearing Guide Wheel 12/14T J 4/5/6mm CNC Pulley Rear Derailleur
MTB Bicycle Rear Derailleur Wheel 11T Road Bike Aluminum Alloy Bearing Pulley
IMPALAPRO Bike Set of 2 11T Jockey Wheel - Pulley Wheel for Derailleurs for Bikes Ultralight and Durable with Ceramic Bearing for MTB or Road Bike - Derailleur Pulley - Shimano Derailleur (Blue)
