Originally Posted by
DenisMenchov
M5 manipulated alloy is definitely stiffer. What would be nice to know is how much more an aluminum frame weighs vs the carbon one...but we're talking FS any ways so stiffness is probably irrelevant to what the OP wants to do.
Carbon is generally chosen in the cycling world for it's stiffness over aluminum It can be laid up in a way that it's compliant, but can also be laid up to be way stiffer than aluminum at a given weight.
I Own an M5 alloy frame, I own a carbon HT frame and other aluminum frames and I can Promise you the Carbon frame is stiffer.
You should quit regurgitating pinkbike crap.