Because it's the end result in making bicycle frames & parts.Technology will not advance much more than this.Only design will.
my question was more in reference to the fact that this thread gets along fine with all different types of bicycle in it, so I can't see a reason why Carbon should have it's own separate thread.
my question was more in reference to the fact that this thread gets along fine with all different types of bicycle in it, so I can't see a reason why Carbon should have it's own separate thread.