Bike Rear Derailleurs Pulleys Steel Bearing Pulleys 11T Aluminiums Alloys Jockeys Wheel Bike Part Easy Installation

Provide stable Rear Derailleurs Jockeys Wheel function to ensure smooth ridings. Seal steel bearing, waterproofs and dustproof, durability. Equipped with 5mm and 4mm variable diameter hoop, suitable for more Bike. Bike Rear Derailleurs Pulleys Steel Bearing Pulleys 11T Aluminiums Alloys Jockeys Wheel Bike Part Easy Installation. Features: Provide stable Rear Derailleurs Jockeys Wheel function to ensure smooth ridings. Seal steel bearing, waterproofs and dustproof, durability. Equipped with 5mm and 4mm variable diameter hoop, suitable for more Bike. Exquisites, fashion and durability appearance, providing efficient rotates speed, suitable for road Bike. Can used in different terrains and road conditions such as highway, providing stable rear guide wheel function. Specifications: Material: aluminum alloys, metal Peilin. Color: black/redness/gold/blue/dazzlings color. Size: As show in the picture. Type: 11T. Package Includes: 1set Bike Rear Derailleurs Jockeys Wheel. note: Please allow 1-