The Shimano 11-speed HG-EV road cassette is a perfect choice for the Shimano 105 R8000 groupset. This cassette is suitable for a wide range of gear ratios and surfaces. With an average weight of 284g (11-28T), 304g (11-30T), 320g (11-32T), 269g (12-25T) this cassette is of excellent quality. The gearing consists of the following sprockets: 11-12-13-14-15-17-19-21-23-25-28T | 11-12-13-14-15-17-19-21-24-27-30T | 11-12-13-14-16-18-20-22-25-28-32T | 12-13-14-15-16-17-18-19-21-23-25T. This cassette is suitable for 11-speed gears and can be used with HG-EV and HG-X11 chains. With the Shimano 11-speed HG-EV road cassette you are assured of a reliable and durable cassette for your racing bike. Product specifications - Model: CS-R7000 - Toothing: 11-30 (11-12-13-14-15-17-19-21-24-27-30) - Gears: 11 speed - Recommended chain: HG-X 11 speed, HG-EV 11 speed - Material: Steel - Type: 105 - Primary base color: Gray - Brand: Shimano - Receipt description: Cassette Shimano 11v - Number of sprockets: 11