Features:Adopting advanced mechanical wire pulling, providing stable and strong braking effect, ensuring cycling safety.Suitable for various types of bicycles, including mountain bikes.The simplely installation process and adjustability make replacement and maintenance more convenient, saving time.Consist with good-quality component, excellent wear resistance, extends service life, and reduces replacement frequency.The overall weight have been optimized to reduce the burden on bicycles and enhances the cycling experiences. Specifications:Color:Two ElectionsDimension:75mm/2.95inComponent:Aluminum Alloys Note:1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Package includes:1Set Aluminum Alloys Brakes