The Shimano RD-M8000 Tension & Guide Pulley is a high-quality replacement part designed for smooth and reliable performance on your mountain bike. Weighing just 23 grams, this pulley is lightweight yet durable, ensuring long-lasting use. The pulley features 11 teeth and is compatible with Shimano XT RD-M8000 rear derailleurs. Its precision engineering provides precise chain movement and efficient shifting, enhancing your overall riding experience. The RD-M8000 Tension & Guide Pulley is made with high-quality materials to withstand the rigors of off-road riding, offering excellent durability and performance. Upgrade your bike with this essential component for improved gear shifting and a smoother ride.