I've toured on my old road bike some. The chainstays are a little shorter than a "touring" bike. And, as mentioned above, I think I max out at about 28mm tires (I usually ride 25mm).
Note, the Colnago doesn't have eyelets at the dropouts, so this uses the Blackburn adapters for Campy dropouts.
I do find the whole thing just feels a little flexy. I'll have to do some more experiments in the future.