The Shimano RDM8050GS Di2 Deore XT Rear Derailleur is a high-quality, 11-speed black rear derailleur designed for a wide range of bike types including hybrid, mountain, and electric bikes. Made from durable alloy material, this medium cage derailleur is lightweight at just 329g, ensuring smooth and precise gear changes. The hanger mounting type makes installation easy, while the Shimano brand name ensures reliability and compatibility with a variety of bikes. Whether you're a recreational rider or a seasoned cyclist, this rear derailleur is a great addition to your bike for optimal performance.