Originally Posted by
rekmeyata
You darn right know, unless you're weak, you can take your thumb and index finger and squeeze a top or down tube on a CF bike and it will give in slightly, try it to your bike.
I did. I just went out to my garage and squeezed multiple tubes on all 5 of my CF-framed bikes, which include some that are 20+yo, and some that are <5yo, with large cross-section, shaped tubes. Every one had the same result - zero deflection under a good hard thumb squeeze.
I suppose there might be some frames out there that might deflect under this test, but it’s hardly a universal thing for all CF frames.