The Shimano RD-R8000 Tension & Guide Pulley is a high-quality replacement part designed for smooth and reliable performance on your bike. Weighing just 19 grams, this pulley set is lightweight yet durable, ensuring optimal functionality during your rides. The pulleys feature sealed bearings for reduced friction and increased efficiency, contributing to a more efficient drivetrain. Compatible with Shimano's 11-speed road rear derailleurs, the RD-R8000 Tension & Guide Pulley set is a perfect choice for cyclists looking to enhance their shifting experience. With precision engineering and quality construction, this pulley set offers a seamless and responsive gear shifting experience, making it an essential component for any serious cyclist. Upgrade your bike with the Shimano RD-R8000 Tension & Guide Pulley for improved performance and reliability.