Aluminum Alloy Muqzi Mountain Road Bike Ultralight Ceramic Bearing Jockey Wheel 11-17t Anti-loose

Description: Name: Bearing Jockey Wheel Material: aluminum alloy + ceramic Color: black/red/gold Specification: 11/12/13/14/15/16/17T Delivery Details: 1 Guide Wheel + 2 adapter  + 1 Screws Features: Two Adapter Are Given As a Gift, Which Is More Compatible And Can Be Converted Into 4/5Mm Bearings After Installation, With Flexible Rotation. Tips: Please Choose The Same Size With The Original Pulley. If No Totally Same, Choose The Smaller Type, Never Choose The Bigger Than Original Ones. Packing list: 1* Bearing Jockey Wheel Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1-3mm error,thank you.