While carbon might be sexier, most pro riders actually use alloy bars like the FSA Team Issue Compact road handlebar. Alloy is more resilient in a crash, and the weight penalty over carbon isn't much. The Team Issue bars are made with butted AL7050 alloy, and then reinforced with a unidirectional carbon fiber wrap to make them stiffer for the sprinters out there.
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SAVE 43% = $75.00