mj.5615886 wrote an answer about MSR Hubba Hubba Tent 2-Person 3-Season on July 11, 2012
I don't use mine for biking but just bought the Hubba Hubba (2-person). If you like having some extra space inside the tent for miscellaneous items AND the weight is not an issue for you, go with the two-person. I like to have a few personal items with me in the tent and if I had bought the 1-person model, it wouldn't have allowed for it. If you just want to crawl in and sleep, the 1-person will likely do the trick.