The feature packed R8000 cassette is built on a rigid alloy sprocket carrier. This helps improve shifting performance while reducing weight. The R8000 cassette ensures accurate and quick shifts, even with the most demanding of gear changes.   Features: Hyperglide EV sprockets have been designed to ensure accurate shifting and reduce wear. Hyperglide EV sprockets enable the cassette to be lighter. Wide gear range to meet the demands of all riders, from road to gravel. Designed for use with 11-speed HG-EV chains. Weight: 232g (11-25). Note - 11/34 is HG800 (same quality as CS-R8000). Ratios 11-25T - 11-12-13-14-15-16-17-19-21-23-25T. 11-28T - 11-12-13-14-15-17-19-21-23-25-28T. 11-30T - 11-12-13-14-15-17-19-21-24-27-30T. 11-32T - 11-12-13-14-16-18-20-22-25-28-32T. 12-25T - 12-13-14-15-16-17-18-19-21-23-25T. 14-28T - 14-15-16-17-18-19-20-21-23-25-28T.