Durable Bike Gear M310 Hook Shifter 21/24 Speed Cycling Accessories for Mountain Bike Maintenance

M310 Rear Derailleur 21/24 Speed Riding Accessories Direct Mount Rear Wheel Transmission for Mountain Bikes Sport Outdoor Features: 1.Convenient Operation: The gear shifter features a visualized position display, making it easy to check your shifting status at a glance. This rear derailleur system is designed for seamless and responsive gear changes during every ride. 2.Professional 7/8-Speed System: Enjoy smooth and precise transitions with the sturdy rear derailleur, compatible with both 7-speed and 8-speed configurations. It ensures reliable hook shifter performance all terrains. 3.Ergonomic Design: Shift and brake levers are crafted with finger-friendly positions and trigger-style handles, offering enhanced thumb shifter comfort for long rides and reducing hand fatigue. 4.High Value & Precision: Experience a cost-effective rear derailleur setup that delivers accurate and dependable directional changes. Optimize your riding accessories without sacrificing quality. 5.Wide Application: Suitable for mountain bikes, city bikes, RVs, road bikes, and folding bikes, this rear wheel transmission upgrade brings versatile performance to a variety of cycling scenarios.Specification: Material: Steel Product Dimensions: 130mm70mm60mm / 5.1in2.8in2.4in Net Weight: 270g Gross Weight: 270g Origin (country or region): China Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding! Please allow a 1-2 cm difference in measurements due to manual measuring.