Made to match the R7101 groupset, Shimano’s 105 12-Speed Cassette offers fantastic shifting performance and a wide range of ratios. With a 34t largest sprocket even the steepest hills won’t be a problem and the Hyperglide+ technology ensures that every gear change is crisp and quick. As it has 12 sprockets, it allows for better cadence control with fewer gaps between the gears with the nickel-plated finish providing protection against wear and corrosion. The cassette is compatible with 12-speed and road 11-speed freehub bodies.