Here is my 2 cents. I have found that weight is not as much of a factor as quality. I toured over 1500 miles with a bad tent that was light and I regretted it every time it rained(bought a new tent after that trip). Look for a self supporting tent with a vestebule, a water proof floor is also a huge plus but adds bulk and weight, if your only riding during the peak of summer it's not as important ofcourse. Normally you'll tour with a partner right, let them carry the poles and you've just cut the weight of the tent.