High Performance Bicycle Derailleur Jockey Wheels 10 12 14 16T With Ceramic Bearings for Long-lasting Use

Description: Positive & Negative Teeth Ceramic Guide Wheel Model: TL-089 Materials: 7075 Aluminum Alloy with Ceramic Ball Bearings Color Options: Black, Red, Blue, Iridescent Specs: 10T, 12T, 14T, 16T Bore: 6mm (includes adapting sleeves for 4mm and 5mm) Approximate Weight: 11g (10T), 13g (12T), 16g (14T), 22g (16T) Sizes: Diameter 44x7.7mm (10T), 52x7.7mm (12T), 59.5x7.9mm (14T), 68x7.9mm (16T) Usage Range: Works with certain derailleur pulleys, 10T short-leg mountain derailleurs, 12T medium/long-leg mountain and road derailleurs, 14T long-leg mountain derailleurs, and 16T specific derailleurs Features: Composed of a hollow aluminum alloy body, CNC-precision machined, anodized finish, available in assorted colors, ceramic bearings, self-lubricating system; superior installation with positive/negative gears Important: Not suitable for 12-speed road bikes; works with 12-speed mountain bikes and chains with a quick-link; incompatible without a quick-link BUYING TIPS No distinction needed between tension and guide pulleys; replacing both improves outcome. During replacement, confirm bore size and fastening bolt size (4/5/6mm). Not suited for original rear derailleurs with 11T and mudguard. Non-compatible with 12-speed road bikes but fits 12-speed mountain bikes and chains with quick-link; no fit without it. Includes: One piece Note: 1. Picture size not actual; check Description for actual size. 2. Manual measurement can cause slight differences. 3. Color might vary with monitor display. 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.