Originally Posted by
shawmutt
Yeah, sorry, I have a Jamis Aurora, 3 in the front, 9 in the back.
Nice bike.
One thing to keep in mind is that you need to set things up for going up for (long) hills.
I've seen riders shift the rear to the largest (easiest) gear in the back while they are in the middle or largest ring in the front. They can run out of gears and have to do a slow front shift (which they often do too late).
The better technique for hills is to shift to the smaller front and up shift the rear 2-3 cogs.
The gap between the front gears is about 2.5 times the gap between the rear gears.