Originally Posted by
RubeRad
If you can give specific tooth counts for front chainrings/rear cogs for your Jamis Aurora (or maybe that's available online?), and can describe which gears you typically need to use, and which you (almost) never have to use, I think the collective can boil that down to a range of gear-inches, and compare to the 5- or 7-spd range of the Civia.
Who are you, with your sensible solutions? Please run for Congress.
(Seriously, I'll see if I can run outside a little later because I don't know off the top of my head. )