"Just curious. I'm about the same size. What width tire do you use, on what type of frame, and how much weight (in addition to yourself) do you bring with?"
I was running 700c, on an Urbanite frame (classic touring narrow tubes). each of four bags weighed 7-9 pounds, and I had two very light tents, about 5 pounds, a light sleeping bag, 3 large bottles, extra food at the end of the day. I ran Schwalbe Marathon slicks in 35 MM. I did manage to split one when I hit a very large rock. I may have been 270 in weight.