Bicycle Derailleur Pulley GUB Lightweight 11T Mountain Bike Guide Wheel
- A must-have replacement part for your bike.
- Compatible for most of rear derailleur on the market.
- Aluminum alloy guide wheel body, lightweight, high strength, anti-rust and durable.
- Fit for 4/5mm roller screw shaft with the screw shaft adapter.
- The ceramic bearing has good performance in rolling smoothly with great stability, low chance of getting chain stuck.
