- Designed with a sturdy standing bicycle body, this product offers exceptional stability during use. - Features a disc and running body for enhanced performance, ensuring smooth operation across various terrains. - Compatible with middle part hub axles, making it ideal for a wide range of bicycle models. - Equipped with an advanced 11-speed gear system, allowing for seamless shifting and optimal speed control tailored to your riding style. - Built with a precise 12 mm specification, ensuring a secure fit and compatibility with standard bicycle components. Use Scenarios: - Perfect for casual commuting, where reliability and ease of use are paramount. - Ideal for outdoor enthusiasts looking for a durable accessory that can handle rugged trails and varying conditions. - Excellent for competitive cyclists seeking a performance upgrade to enhance their ride efficiency and gear responsiveness. With its robust construction and versatile design, this product is the perfect addition to elevate your cycling experience.