I just toured for 9 days from portland to san fran on a gunnar roadie. I'm not sure what year it is, but I would guess mine is about 2002-2004. I carried a really really light load. I used a Tubus Fly rear rack and made my own ultralight panniers, slept under a tarp and bivy with a quilt to cover me. I'm fairly accustomed to ultralight travel from backpacking, so I knew what I was comfortable with. I didn't weight everything total, but I'm guessing that before food and water, my pack weight wasn't more than 10 lbs. including bag and rack.
I rode on very skinny gatorskin tires to the tune of 700x23 (zero flats). The bike was more than comfortable enough. I spent a good portion of the trip breaking in a titanium brooks saddle, which I wouldn't recommend (break in well before you leave
. The route was mostly pavement, but we encountered some gravel and ripped up pavement. The latter was pretty jittery, but far from unbearable.
I would say that the gunnar roadie is a great choice for someone dedicated to touring very lightly who wants to ride fast. Put your heavy small items in a handlebar bag if you're getting close to gunnar's weight limit. The bike is super solid, made from great steel, but there's not a lot of room for fenders.
I ended up taking my one front fender off and strapping it to the rack because it kept sliding around on the carbon fork. I would have put it back on if we encountered a downpour, but no such misfortune befell us. I would have preferred a steel fork, but I got the bike used. anyway, that's my review from my first tour on my roadie. hopefully there will be many more to come.