Apply for most of rear derailleur on the market. Acrew axis:Fit for 4/5/6 MM roller screw axis. Bearing:ceramic bearing ,stainless steel shell, more durable.
Road Bike Ceramic Pulley Rear Derailleur 12T 14T Guide MTB Bearing Jockey Wheel
Road Bike Ceramic Pulley Rear Derailleur 10-17T Guide MTB Bearing Jockey Wheel
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 (Gold)
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(Black)
IMPALAPRO Bike Set of 2 13T Jockey Wheel - Pulley Wheel for Derailleurs for Bikes Ultralight and Durable with Ceramic Bearing for MTB or Road Bike - Derailleur Pulley - Shimano Derailleur (Black)
