Bicycle rear derailleur pulley 11T aluminum alloy guide mountain bike jockey wheel speed bearing transmission 2 pieces (red) tension pulley.

Product Description Specifications: Material: Aluminum Alloy Color: Black + Red Cap, Red, Golden, Silver (optional) Weight: Approximately 22g Teeth: 11T Total Length: Approximately 4.3cm / 1.69" Size of Rear Derailleur Pulley Screw Hole: Approximately 5mm / 0.19 inches Adopting aluminum alloy material, lightweight and durable, rust-resistant treatment, and corrosion resistance through anodizing, which can extend the lifespan. Bicycle derailleur guide pulley, easy to install. No complex tools are required. No complicated work is necessary. Fits almost all mountain bikes with 11T and supports various speed shifts. Essential accessory for bicycles. These pulleys operate on smooth ball bearings, providing a better cycling experience. [Wide Application] Bicycle Dura-Ace pulley fits almost all mountain bikes with 11T and supports various speed shifts, offering a better cycling experience. Essential accessory for bicycles. [Perfect Design] These pulleys operate on smooth ball bearings, essential accessories for bicycles. Available in four colors: Black + Red Cap, Red, Golden, Silver to meet various needs. Enjoy cycling. [Aluminum Alloy] Bicycle big pulley adopts aluminum alloy material, lightweight and durable, rust-resistant treatment, and corrosion resistance through anodizing, which can extend the lifespan. This product is highly durable. [Easy Installation] Bicycle derailleur guide pulley, easy to install. No complex tools are required. No complicated work is necessary. Saves your time and effort. Simple design with great functionality, ready to use. [Standard Specifications] Complies with strict quality control standards, reliable for use. Manufactured according to original specifications. Built to meet standard specifications and strictly follows factory quality control.