The RainFlowwer Bike Rear Derailleur 6/7 Speed RD-TY21B Hanger Mount, a premium product designed for mountain bicycle enthusiasts and riders of 6/7-speed bikes. Made from high-quality steel, this rear derailleur boasts exceptional durability and a long service life, making it an excellent choice for riders who demand reliability and performance.

Easily install and disassemble with the quick-release mechanism, allowing for effortless component interchangeability. The durable aluminum alloy material ensures smooth and precise shifting, providing a safe and stable riding experience. Whether you're tackling challenging mountain trails or cruising through city streets, this rear derailleur delivers exceptional performance and reliability.

With its wide application range, this bicycle transmission is suitable for various types of bikes, including variable speed, mountain, road, bicycle racing, city, and folding bikes. This product is an essential accessory for any serious cyclist, offering unparalleled shifting performance and durability.

Note: This hanger-mount rear derailleur is designed for compatibility with specific bike frames. Before purchasing, ensure that the original part is hanger-mount compatible. If you have any questions or concerns, our professional customer service team is here to assist you. Upgrade your ride with the RainFlowwer Bike Rear Derailleur 6/7 Speed RD-TY21B Hanger Mount and experience the thrill of seamless shifting and improved performance.