Originally Posted by
Jaytron
Gearing: If you're typically riding flat, 70~75gi seems fine. Somebody else can chime in here.
I run 48/17 which is about 74gi myself. It's pretty good for flat San Jose, CA but it also works when I bring it to places like San Francisco.
When I first got my Kilo TT, I was running 48/16 (approximately 81 gear inches), which was mostly fine here in NYC, but could get a bit annoying sometimes since I wasn't spinning very fast.
Here's a good diagram about gear ratios.
http://wheelgirl.typepad.com/.shared...dspotchart.jpg