Elevate your mountain biking performance with the SunRace M900 Rear Derailleur - a precision-engineered, reliable component designed specifically for 9-speed MTB drivetrains. Built with durability and smooth shifting in mind, this high-quality derailleur is perfect for trail enthusiasts seeking enhanced gear performance and lightweight construction. Materials & Construction Crafted from premium alloy materials, the SunRace M900 Rear Derailleur features an alloy bracket, alloy outer link, and alloy outer cage, combining strength and lightweight properties for optimal cycling efficiency. Its durable construction ensures resistance to rugged trail conditions, making it an ideal upgrade for aggressive mountain biking adventures. Performance & Engineering Designed for seamless gear transitions, the SunRace M900 incorporates an adjustable chain stabilizer that minimizes chain slap and enhances shift accuracy across diverse terrains. With a medium cage length, it accommodates cassettes up to 51-tooth sprockets, providing a wide gear range for climbing steep inclines and fast descents. Weighing just 270 grams, it offers an excellent balance of lightweight performance and robust durability. Components & Technology Compatible with mountain bike shifters and featuring Rear Direct Mount compatibility, the SunRace M900 ensures precise indexing and compatibility with most 9-speed drivetrains. Its advanced engineering promotes consistent, crisp shifts even under heavy loads or rough trails. Style & Use Case Finished in sleek black, the SunRace M900 adds a professional, aesthetic appearance to your mountain bike. Whether you're conquering rugged trails, tackling technical climbs, or simply enjoying off-road adventures, this rear derailleur provides the reliability and performance you need to stay confident in challenging conditions. Innovative Features Experience smooth, responsive shifting with the adjustable chain stabilizer that reduces chain noise and improves