The Shimano Tiagra HG-500 is a high-quality 10-speed cassette for different types of road bikes such as mountain, racing, touring, trekking, cruiser, and cyclocross bikes. Weighing exactly one pound, the cassette comes with hyperglide sprockets that have a computerised tooth configuration and contoured shift gates that help with smooth shifts under all conditions. The sprockets with a nickel-plated finish are corrosion-resistant and are drilled and cut away to decrease weight without rigidity compromises.