Most bullshit in a thread EVER!
I get the feeling lots of people have bad memories of CF in the ’90s. Modern CF is pretty strong, there was a good discussion about this in the DIN testing thread two or so weeks ago.
The problem with CF failing is that it does so without any warning (no visible cracks etc) and does so in an instant
If it was made of one single piece of CF, rather than hundreds of pieces all laid up. Early carbon frames (Giant MCM etc) had an insane amount of paint on them to protect the CF from getting scratched or gouched by rocks. Modern frames (Ibis mentioned aboved being an exception) don’t have this. A scratch is no longer an issue, as the layup of the carbon is multi-directional and multi-layered, preventing a propagating crack or tear that would cause a catastrophic failure such as you get in aluminium.
The other aspect is what is the advantage of a CF frame? How much of the weight of a nice light bike is the frame? 4 lbs out of 25? so save 1/2 a pound on the frame – does it really matter?
Matters a lot. I’m currently riding a 3.5lb (including shock!!) full-suss frame. That’s lighter than most alloy hardtail frames. So yeah, it does matter if you’re design goal is to make comforts such as FS without the weight penalty usually associated with them.
Maybe at the end of the day it comes down to the XTR chainrings argument: If you’re fat, slow, clumsy, can’t afford to replace it or just don’t want it, vote with your visa card and buy something else.