fO Composite is Giant’s proprietary composite technology, developed to achieve a superior balance between the three things serious riders hold in the highest regard: stiffness, light weight and ride quality. It’s a difficult juggling act to keep these three elements in perfect harmony. Get it wrong and you’ll end up with a bike that’s too flexy, too harsh, or too heavy. Get it right, and you’ll have a bike that accelerates like a rocket, efficiently transfers energy and soaks up performance-robbing vibration for all-day comfort. Giant Road Bike Reviews
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