I wanted to post this in the Prototype frames in the Wanted/For sale section but not Validated . So here we go. Carbon fiber is very strong in one direction, it is very rigid and under pressure it shatters, due to vibrations blah blah blah. So in a trials frame it will snap in a matter of weeks, when rode by a novice let alone any one good. The reason Onza C-F bars are ok, is because they have a metal core, which adds allot more flex and multi-directional strength. Jacko [EDIT:] Sorry Mods.