Shimano Ultegra CS-R8000 11-Speed Cassette

Superior choice is at the heart of Shimano's rider-tuned philosophy, and the Shimano Ultegra CS-R8000 11-speed Cassette reflects that philosophy with gear combinations of 11-25T, 11-28T, 11-30T, 11-32T, 12-25T, 14-28T and 11-34T (CS-HG800-11), giving you all the options you need to tune your ride. The Shimano Ultegra CS-6800 11-speed cassettes use Hyperglide sprockets with revised tooth profiles for reduced wear and lightning quick shifts. A rigid aluminum carrier keeps the cogs in check for improved shifting under the most demanding gear changes. The available ratio combinations work extremely well with standard or compact cranksets. 11-32T gear ratio requires the use of a medium cage rear derailleur.

Gear Ranges: 11-25, 11-28, 11-30, 11-32, 12-25, and 14-28.
Weight: 243 grams (12x25T)
Ratios:
11-25: 11-12-13-14-15-16-17-19-21-23-25
11-28: 11-12-13-14-15-17-19-21-23-25-28
11-30: 11-12-13-14-15-17-19-21-24-27-30
11-32: 11-12-13-14-16-18-20-22-25-28-32
12-25: 12-13-14-15-16-17-18-19-21-23-25
14-28: 14-15-16-17-18-19-20-21-23-25-28