... 3.3k,12k or ud 4.OEM best quality carbon road bicycle racing handlebar Features:1. Made of Toray T700 high modulus ... .best carbon fiber wheels for road,MTO and track3. Carbon Handlebar, Carbon Rims, Carbon Stem, Carbon Bottle cage, Carbon Pedals, Carbon Group Set ... the fiber high strength-to-volume ratio (makes it strong for its size). Several thousand carbon fibers are bundled together to form ...