It’s not often a cassette is the most significant component in the release of a new groupset, (well, for a year at least, since the launch of Dura Ace 9000), but the extra sprocket on this new Ultegra cassette will be a welcome addition for riders seeking wider ratios.
The CS-6800 will offer plenty: 11-23, 11-25, 12-25, 11-28, and a whopping 11-32. The broad choice supports a concept Shimano calls a “rider tuned drivetrain”, offering ratios they believe are appropriate to cycling’s four major riding types. While its possible to achieve broad ratios from 10-speed set-ups (SRAM’s Wi-Fli offers 11-32, after all), doing so from 11 speeds should reduce the gap between each sprocket.
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