I mean, it's not a 11-28. This is a ratio that's fit for the hills, or if you're wise about your cadence. It's better to spin rather than to grind. Even with this you'll be grinding up 17% hills. It works flawlessly with the new Ultegra medium cage and has made my hill rides actually enjoyable.
Reporting from the east bay hills.
Uses 10 speed freehub width but comes with a spacer to fit 11 speed cassettes. If you have a compact and ride a lot of hills, this will get you a 11 ratio that will help you tackle any hill.
I was having trouble converting my Lemond Revolution to an 11 speed cassette. Most options required machining either the freehub or the back of an 11 speed cassette. The Shimano 105 CS-HG700 11 speed cassette eliminated that need! This cassette is set up to use on either a 10 speed or 11 speed free hub! It was the perfect solution discovered by accident. I originally purchased it thinking I was going to have the back machined to make it work. I was very surpirised to find that it was made for either. This was perfect!
Are use this on my gravel bike with a 5034 crankset. This allows me a one to one ratio for when Im climbing are use this on my gravel bike with a 5034 crankset. This allows me a one to one ratio for when Im climbing up hills . Very adequate gearing shifts smoothly highly recommend