Although extra weight, I like the Big Agnes, Big House 4 Tent and Vestibule. You can put your bikes in their. (sensor alarm on zipper) It protects against the rain, prying eyes, and if we have a disagreement, I can sleep in the vestibule not outside. (LOL) When we travel we like the room, especially on really rainy days. www.bigagnes.com
Wow, you must really like a lot of space to be willing to carry 15+ pounds of tent and vestibule (16+ if you bought the footprint too). Is that for two of you?
I carried a 9 or 10 pound tent for three of us on the Trans America and cursed at it's weight every single day! A couple days in the Appalachians I felt like all I did was curse at the tent
If I were starting the same trip today, I would be willing to spend a good bit more and put up with a bit less space to lose a few pounds on the tent. Since then, I have since decided that 30 pounds base gear was my limit including panniers and 20-25 is my goal. That requires a much lighter tent for me.