Thanks everybody. The tires are 700's. I won't be carrying more than 30 pounds of gear. I do quite a lot of backpacking and the focus has been on ultralight. I normally carry around 45 pounds, but that's 10 days of food and a days supply of water. Maybe, I can get it all on my sectuer. Even with gear weight, the bike would still have less than 200 pounds. Why then, when I see people traveling, their bikes look loaded?