Originally Posted by
bruce19
What makes the different grades of CF different? And, does it get down to the point where a "lower" level of CF frame is less desirable than say a good AL frame? From a materials science perspective.
Different grades of CF have different yield strengths and other properties. Better costs more. Stronger CF of course means you can use less of it, and more importantly, less resin, thus a part of the same strength and stiffness is lighter, not much, but lighter. There may be other variables with the resin and layup of which I'm unaware. I'm not an expert on carbon frames! I'm just familiar with the technology and have used it a little.