Rear Derailleur Pulley Bike Bicycle Ceramic Bearing Jockey Wheel Aluminium Alloy Rear Derailleur Guide Roller 11T 13T 2pcs 11T Blue

Description: Anodized CNC machined bicycle jockey wheel with fully rubber sealed bearing for center bolt derailleurs. It runs on smooth ball bearings, and it's a necessary accessory for your bicycle. There are three different colors for you to choose from, to meet different needs. Fits for most of the rear derailleur on the market, support 7/8/9/10 speed. Hope you will enjoy your cycling. Have a nice day. Features: 1. Bike Jockey Wheel Pulley Made of CNC aluminum alloy, lightweight and durable. 2. Anti-rust and corrosion resistant anodized. 3. These pulleys run on smooth ball bearings. 4. A necessary accessory for your bicycle. 5. Apply for most of the rear derailleur on the market, support 7/8/9/10 speed. Specifications: Material: 7005 Aluminium Alloy Components: Derailleurs Structure: Ceramic Bearings Color: Red, Blue, Silver (optional) Size: 11T, 13T (optional) Use: For 7/8/9/10 speed Diameter: 11T-40mm, 13T-50mm Quantity: 2pcs Package Weight: approx. 20g-11T, 23g-13T Fit For: For 4/5/6mm roller screw axis Package Included: 2 x Ceramic Bearings Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing  slightly different from the real object. Please in kind prevail.