Maybe you should have to know that I have just partially broken a tube of my frame. It coud be derived of putting very often my bike into the rollers.
However, I don't know exactly if it was really caused by the trainer. In fact, my frame is 7 year old and it has more than one hundred kilometres and several crashes. Furthermore, It has the crack in the upper horizontal tube, ten centimetres far from the steer tube.
I would also want to comment that it is a Columbus Genius frame, whose brand is Mendiz.
Good mornings from Avilés, in Spain;
Lukylukecyclist