Originally Posted by
Eds0123
If those great professional grade CF frames made for racing at TdF break as a result of a collision with another bike on top of another car or another car going over it...
You make is sound as if these aren't extraordinary circumstances. Breakage from getting run over by a car should be pretty self-explanatory, and breaking while on the rack shouldn't raise any eyebrows either when you consider that it's tightly secured to the rack - where else is that energy supposed to go? Of course it's going to break. Both of these scenarios are far, far different than taking a spill and having the bike bounce off the deck.