Breaking the bar
When a carbon fiber handlebar breaks, it makes a sound like a snapped twig.There’s a sharp “crack!” followed by a hollow splintering sound, just asif you’d broken a dry stick over your knee. Then, silence.The similarity in sound is due to the similarity in structure. Carbonfiber, like wood, is made of long strands of high-strength material surroundedby a resin matrix. Trees do it with cellulose and sap. Engineers do itwith synthetic polymers and glue.The difference, of course, is that carbon fiber is considerably strongerthan wood; in fact, carbon’s raw tensile strength figures typically