Definition of aerobar
: a set of bicycle handlebars or handlebar extensions that are designed to put a rider's body in a low, aerodynamic position Once you get an aerobar, you'll be addicted to it. If you're new to the bar, try it first on a flat, fast course—it's phenomenal.— Christine Mattheis, Bicycling, March 2008 —usually plural If you watch the Tour De France, they use aerobars for aerodynamics but they are only riding 30 or so miles at most.— Willy Nevin, San Jose (California) Mercury News, 13 May 2010
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