Unbranded Vélo Mountain Bike Guide Roue Cadran Arrière Roulement Anode Cnc Pignon 11 Dents Roue Volant D’inertie Accessoires De Vélo (doré) (1pcs)

ZDD The ceramic bearing has good performance in rolling smoothly with great stability, low chance of getting chain stuck.
Aluminum alloy guide wheel body, lightweight, high strength, anti-rust and durable.
Fit for 4/5mm roller screw shaft with the screw shaft adapter.
Compatible for most of rear derailleur on the market.
A must-have replacement part for your bike.
Size:Screw hole of rear derailleur gear: 5MM
Package Included:1pcs*Bike Guide Wheel Rear Dial Bearing