This could probably be taken into account on most two wheel bikes. When purchasing a bike, should the shape of the rear stays, be taken into account. Some lean forward some lean backwards and some are straight, some are thick some are thin. If you look at the cervello R3 frame ,they are straight and thin. This bike has won the Paris/Robaux race,for the last two years. Arguably one of the hardest road races on the calender. So are they correct in this shape for strength & duribility. Should other bike types take this into account. I enclose a pictures of my favourite bike a Giant TCR Advaned 06 , which i find very comfortable to ride, and would need some convincing to change it. ( I am a retired veteran, but a very vigerous rider who rides lots of rough roads.