Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Bikes: 86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
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I currently have a 12-28.
I was doing some "horse trading" and got the 15T and 13T cogs. Had the 13T worked, I would have had a 13-24 with a little better selection for the gears I use the most.
13-14-15-17-19-21-23 (std 13-23)
Mine would have been-
The 24 works very good for a start gear on the middle ring for my riding (flat). The 23 is slightly "steeper" than I want, although it would work.
I tend to run between 14-18 for most my "cruising". Usually, the 14 is just a bit too steep where the 15 would fit perfectly. I still want the 1 tooth drop to the 16, since that gear is also used a lot. After that, 2-3 tooth changes are no big deal since I only use those gears for getting up to speed.
Ideally I guess I would like a 13-14-15-16-17-18-21-24/5. But that's 8 speeds!
Anyway, I got the 2 cogs virtually free and the 15 WILL still be useful, plus I drop the 28, which is too low on the middle ring. Friction shifters! It's just a lot easier to shift down to 1st instead of 2nd when you have to make a quick stop.