Metal and Ceramic Uncoated Bicycle Pulley Rear Derailleur Guide Wheel Bike Accessory(Ceramique noire )

Feature: 1. Featuring 13‑tooth upper pulley and 19‑tooth slide pulley, the upper and lower oversized aluminum pulleys are equipped with standard bearings. 2. The friction in the pulley can be reduced to achieve the best performance, provide better use feeling. 3. Made of high quality metal material, firm and durable, provide longer service life. 4. Light in weight and small in size, portable and easy to carry, and will not bring the burden to your bike. 5. Easy to install and operate, only need a few steps, can effectively save your time. Specification: Item Type: Bicycle Pulley Material: Metal + Ceramic(Bearing)Weight: Approx. 127g 4.5oz Quantity: 1PCS. Package List: 1 x Bicycle Pulley