Sanmum Set of 2pcs Bicycle Ceramic Rear Derailleur Pulley Wheel, Bike Hybrid Ceramic Bearing Components for 4/5mm Guide Wheel (Multicolor, 16T)

Sanmum Set of 2pcs Bicycle Ceramic Rear Derailleur Pulley Wheel, Bike Hybrid Ceramic Bearing Components for 4/5mm Guide Wheel (Multicolor, 16T)

• COMPATIBILITY: Ceramic Pulley Wheels feature low friction bearings and crisp shifting making them the perfect upgrade for your MTB System.
• ULTRALIGHT AND RESISTANT: Each pair of Ceramic Pulley wheels weight only from 18.2g. The lightweight design paired with the strong aluminum used to manufacture them gives our pulleys a higher strength-to-weight ratio and flawless shifting properties. The MTB jockey wheels are anodized in 2 different colors to prevent rust and corrosion.
• IMPROVES PEDALING SPEED BY REDUCING FRICTION: The ceramic inner bearing, specially designed for cycling, has minimal friction that significantly improves performance thanks to a much smoother transmission.
• SMOOTH RIDE: Deep toothed guide wheel to reduce chain drop. Positive and negative tooth guide wheel can effectively inhibit the horizontal swing of the chain, so that the speed is more accurate.
• INSTALLATION: These derailleur pulley set are very easy to install with an allen key by simply removing the screw that holds the pulley to the derailleur. Make sure the screw is 11,5mm or longer to ensure compatibility (Includes accessory for compatibility with 4mm and 5mm screw thickness.). Do not over-tighten because it would increase friction with the rear derailleur reducing the bike jockey wheel performance.