Premium Kadimendium Bicycle Rear Derailleur Wheel - Durable Metal Ceramic Bike Wheel Guide Roller for Mountain Bikes | Reduces Friction & Enhances Shifting Performance | Ideal for Trail Riding, Commuting & Off-Road Cycling

Feature:1. Improve Riding Experience: A variety of colors are available to meet different preferences and effectively improve the riding experience.2. Reduce Friction: The bearing adopts the ceramic bearing process, which greatly reduces the friction strength, and the self lubricating system has good lubrication performance.3. Reduce Chain Drop: Deepen the tooth marks, reduce the chain drop and the deep tooth guide wheel, which can effectively reduce the chain drop and make the winding more stable.4. Rotation: The ceramic balls are self lubricating and maintenance‑free, and the rotation is silky smooth. At the same time, the transmission efficiency is higher, and the riding is labor saving.5. Good Compatibility: The reducer sleeve has good compatibility, and the chain is not stuck when riding. It is suitable for 8, 9, 10, 11 speed rear derailleurs. The outer diameter of the installation shaft is compatible with 4, 5, 6mm.Specification:Item Type: Bicycle Rear Derailleur WheelMaterial: Metal ceramicDiameter: Approx. 4.2cm / 1.65in Package List:1 x Guide Wheel2 x Reduction Sleeve

Improve Riding Experience: A variety of colors are available to meet different preferences and effectively improve the riding experience.

Improve Riding Experience: A variety of colors are available to meet different preferences and effectively improve the riding experience.

Reduce Friction: The bearing adopts the ceramic bearing process, which greatly reduces the friction strength, and the self lubricating system has good lubrication performance.

Reduce Chain Drop: Deepen the tooth marks, reduce the chain drop and the deep tooth guide wheel, which can effectively reduce the chain drop and make the winding more stable.

Smooth Rotation: The ceramic balls are self lubricating and maintenance‑free, and the rotation is silky smooth. At the same time, the transmission efficiency is higher, and the riding is labor saving.

Good Compatibility: The reducer sleeve has good compatibility, and the chain is not stuck when riding. It is suitable for 8, 9, 10, 11 speed rear derailleurs. The outer diameter of the installation shaft is compatible with 4, 5, 6mm.