Unbranded 11t Mtb Bicycle Rear Derailleur Jockey Wheel Pulley Road Bike Guide Roller Idler

11T MTB Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Pulley AL7075 CNC Road Bike Guide Roller Idler 4/5/6mm Features: 100% brand new and high quality. Color: red, blue, black, gold, titanium Material: aluminum alloy 7075 Structure: ceramic bearing Teeth: 11T Diameter: 4.4cm/1.73′ Weight: about 8g Fit for 4/5/6mm roller screw axis Apply for most of rear derailleur on the market Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 Pulley Jockey Wheel