Brake: gadgets accustomed to prevent or slow down a bicycle. Rim brakes and disc brakes are operated by brake levers, which are mounted around the handlebars. Band brake is an alternative choice to rim brakes but can only be installed at the rear wheel. Coaster brakes are operated by pedaling https://bikeengineparts15824.bleepblogs.com/35522429/about-bike-parts-bmw