I often ride 2-up with my daughter (5'0", 105 lbs) and my wife (5'6", closer to my weight <grin>).
We have had some good winds lately and I noticed that it really pushes the bike around more with my wife on than with my daughter. Is this simply a matter of a larger sail catching more wind? How come the mass doesn't counteract the wind surface and make the bike hold steady as well?
