VGEBY1 Bike Derailleur Pulley, Bike Rear Guide Wheel Lightweight 11T Jockey Pulley Bicycle Derailleur Accessories for Road Mountain Bike Bicycle (Black)

• [Stable Structure]: Our bicycle derailleur pulley adopts an aluminum alloy guide wheel body, which is light in weight, high in strength, rust-proof and durable, and is a must-have replacement part for your bicycle.
• [Ceramic Bearings]: The ceramic bearing has smooth rolling, good stability, and low probability of chain locking. At the same time, the bicycle derailleur pulley is compatible with most rear derailleurs on the market.
• [11 T Design]: This bicycle derailleur pulley fits a 4/5mm roller screw shaft and a screw shaft adapter, note that one of the screw shaft adapters is already installed on the pulley.
• [Improve Cycle Efficiency]: These pulleys run on smooth ball bearings, the ceramic material reduces drag and thus improves cycle efficiency, and the positive and negative toothed idlers make no noise for faster speeds.
• [Service Guarantee]: If you have any questions about our bicycle derailleur pulleys, you can contact us by email at any time, we will reply and solve your problems in time, and strive to provide better service.

Description Feature: STABLE CONSTRUCT: Aluminum alloy guide wheel body, lightweight, high strength, anti-rust and durable, a must-have replacement part for your bike. CERAMIC BEARING: The ceramic bearing has good performance in rolling smoothly with great stability, low chance of getting chain stuck, compatible for most of rear derailleur on the market. 11 T DESIGN: Fit for 4/5mm roller screw shaft with the screw shaft adapter, one of the screw shaft adapter has been installed on the pulley. IMPROVE CYCLING EFFICIENCY: These pulleys run on smooth ball bearings, ceramic material can reduce drag force which can improve cycling efficiency. MORE PRACTICAL: The positive and negative tooth guide wheel won't make some noise and guarantee the faster speed. Specification: Material: Aluminum Alloy Optional Color: Black Red, Black Type: 11T Fit for most of rear derailleur on the market Size: Approx. 41.5mm/1.63in Weight: Approx.15g/0.53oz Packing List: 1 * Bike Rear Derailleur Pulley 2 * Screw Shaft Adapter