Made with custom, hand-laid carbon fiber, Hex Lab™ Carbon bars are the first of their kind - a high-level, race-oriented bar designed specifically for younger riders. With a proprietary, 28.6mm oversized clamp interface that provides exceptional stiffness and unrivaled performance, Hex Lab™ bars are unlike any other on the market today. Must be used with our Hex Lab™ or any 28.6 bar bore stem.