Durable Universal Bike Guide Wheel Pulley - Compatible with Road Bikes & Mountain Bikes | Smooth Ride Enhancer for Cycling & Commuting

This fits your . Make sure this fits by entering your model number. STABLE PERFORMANCE: Ceramic bearing rear guide wheel makes the speed change smoother. The deep tooth guide wheel can effectively reduce the chain drop, the speed change is clearer, and the winding is more stable. WIDE APPLICATION: Equipped with reducing sleeve, which is more compatible. The original aperture is 6mm, and the installation reducing sleeve can be converted to 4mm or 5mm. HIGH QUALITY: Made by CNC machining of 7075 high‑strength aluminum alloy and finely machined with a knife, with good wear resistance. Goood bearing, flexible rotation. Suitable for 8 / 9 / 10 / 11 speed transmission system. GOOD PERFORMANCE: Imported ceramic bearing, smoother, greatly reduced friction, higher strength, and improved your riding experience thanks to a much smoother transmission. SIMPLE INSTALLATION: With mount accessory, it's easy to install with an key by simply removing the screw that holds the pulley to the derailleur. Adapt the the wheels to the size of the screw (4 ,5 or 6 mm) with the included cylinders if necessary. Do not oer-tighten because it would increase friction with the rear derailleur reducing the bike wheel performance.