- Model: This bike rear derailleur is designed for compatibility with Shimano and SRAM 9-speed mountain bikes, ensuring a perfect fit for your cycling needs. - Important Note: This derailleur features a direct mount design, not a hub bolt mount. Please verify the mounting type of your original part to ensure compatibility before purchasing. - Enhanced Performance: Experience precise gear shifting with our MTB rear derailleur. It offers light and stable performance, making your rides smoother and more enjoyable, whether you're tackling rugged trails or cruising on flat terrain. - Durable Construction: Crafted from high-quality aluminum alloy, this rear derailleur is built to last. Its robust design ensures durability and longevity, while also being easy to install and disassemble for maintenance. - Practical Use Scenarios: 1. Ideal for mountain biking enthusiasts looking to upgrade their gear system for improved shifting accuracy on challenging trails. 2. Perfect for casual riders aiming to enhance their bike's performance and comfort during long-distance rides. 3. A reliable choice for bike repair shops or DIY cyclists needing a dependable replacement part for their Shimano or SRAM 9-speed setups. Choose this rear derailleur for its superior function, compatibility, and robust design, making it an essential upgrade for any serious mountain biker.