Bicycle Derailleur Jockey Wheels 10/12/14/16T Aluminum Ceramic Bearing Positive Negative Teeth Pulley Hollow Lightweight

Description Product Name: Positive & Negative Teeth Ceramic Guide Wheel Model: TL-089 Material: 7075 Aluminum Alloy , Ceramic Ball Bearings Color: Black, Red, Blue, Iridescent Specification: 10T, 12T, 14T, 16T Bore Diameter: 6mm (with 4mm and 5mm reducing sleeves included) Weight: Approx. 11g (10T), 13g (12T), 16g (14T), 22g (16T) Product Dimensions: 44x7.7mm (10T), 52x7.7mm (12T), 59.5x7.9mm (14T), 68x7.9mm (16T) Application: Compatible with some derailleur pulleys, short-leg mountain rear derailleurs (10T); most medium/long-leg mountain and road rear derailleurs (12T); long-leg mountain rear derailleurs (14T); some rear derailleurs (16T). Features: Aluminum alloy main body, lightweight hollow design, CNC machined, anodized finish, multiple color options, ceramic bearings, self-lubricating system with excellent smooth performance; better performance when installed as a set with positive and negative gears. Note: Not compatible with 12-speed road bikes; compatible with 12-speed mountain bikes. Compatible with 12-speed mountain/road chains only when a quick-link is used; not compatible without a quick-link. PURCHASING REFERENCE It is not necessary to distinguish between tension and guide pulleys; replacing them as a pair yields better results. For replacement, only check the diameter and whether the fastening screw is 4/5/6mm. It may not be suitable for original rear derailleurs with 11T gears that have a mudguard. Not compatible with 12-speed road bikes; compatible with 12-speed mountain bikes. Compatible with 12-speed mountain/road chains only when a quick-link is used; not compatible without a quick-link. Package include:1pcs Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.