10 speed cogset includes 11-13-15-17-19-21-24-28-32-36T
Look no further than Shimano's Dyna-Sys CS-HG81 Cassette for mega-smooth shifting and ultra-close gear ratios. With a tighter gear spread, you'll spend less time searching for the perfect cadence and more time cruising up hillsand with the available 11-36T cassette, you won't have to visit granny as much either.