It will be about 10 miles each way, all on mostly country backroads which are crappy. I tried it on my CAAD9, and man, I got beat the hell up.
Problem is, I can't afford to get another new bike. I just bought the CAAD9 and a Giant XTC2 29er. The 29er is for mountain biking, so I don't want to put 700c tires on it. That is out of the question.
I've already replaced the 700x23 tires on the CAAD9 with 700x25 gatorskins. That helped the ride tremendously. However, I just really don't want to put all these miles on my road bike for commuting.
I DO want something that is going to be nearly as quick but much more comfortable to ride on the poor Oklahoma back roads.
Based on my requirements, what would be a good place to start? Build my own? If not, what are some good models to start looking at for commuting? I'm 5'11" and about 210 currently.