Finally!

Shimano started making 11-25 cassettes! I ran an 11-23 all this year and I couldn't tell you how the extra 16 tooth cog felt different than the old 16t-less nine speed. It could just be that I spent all those years mountain biking (or that I still ride a single to work every day), but I've never felt the need for a corn cob cassette. I have, on occasion (Bear Mtn comes to mind), wished for a lower gear. Also, with an 11-25 and a 42 tooth, you can spend a lot less time shifting and have cleaner shifts up front when you need to.