High Quality: Made of aluminum alloy material, with upgraded CNC process. Our Bike Jockey Wheel Pulley is lightweight but durable, anti-corrosion and anti-rust
Ceramic Bearing Pulley: New upgrade design, with ceramic bearing, can reduce the resistance during cycling, which ensures fast and sensitive working. Improve riding efficiency
Package Included: Come with 2PCS Bicycle Rear Derailleur Pulleys, 2PCS Bike Rear Derailleur Bolts, and 2PCS 4mm Adapters, 2PCS 5mm Adapters. Can be converted into 4/5mm bearings after installation
Compatible Design: Our Bike Rear Derailleur Pulley is more compatible, it fits almost all mountain bikes and road bikes. In addition, it is also suitable for other bicycles with rear derailleur
Multi-size: 11T/12T/13T. Please choose the same size as your original pulley. If not totally the same, choose the smaller size, never choose the bigger than the original ones
