Cutting Carbon
When cutting any carbon first wrap in one wrap of masking tape. Only use a 32-tooth hacksaw blade with a guide and use very, very little pressure on the saw. Make long strokes with almost no downward pressure on the blade. Remember, a hacksaw only cuts in one direction so the back and forth technique does nothing but mess up your blade and mess up what you are attempting to cut. When you finish the cut, take some very fine (180-220 grit) sandpaper and dress the cut edge thoroughly. I have cut carbon bars/seatposts, etc. several hundred times using this method without fail.