I would have recommended a wider tire like a 35 or 37mm Continental Contacts but after my recent episode with blowouts while on tour and previous episodes with blowouts on tour, I'm starting to rethink my ideas. I couldn't run the Continental Contacts at even the recommended maximum pressure without blowing the tires off both rims. Nothing like having to bum a ride on the morning of the second day to go get tubes after ruining 1 more tube than you had tires*

I'm thinking of going to a 32mm tire which is about the same width as 1 1/4" tires that I used for ages on my other touring bike. The ride on a 37 is very nice but if you have to run them at 70 psi to keep them from blowing off the rim, the ride just isn't worth the drop in efficiency.

*No, it was not the rim. It was the pressure in the tire that caused 6 separate blowouts or flats. Both front and rear tires blew out and I run different brand rims on the front and rear. And I've had blow out problems with two different models of Continentals...Top Touring and Contacts.