Giant first entered the aero road bike game in 2013 with the launch of their Propel Advanced SL. Tests showed that, at 40 kph, the Propel Advanced SL saves 12-36 seconds over 40 kilometres. Third-party wind-tunnel tests showed that the Propel Advanced SL is more aerodynamic from every yaw angle tested when compared to other leading aero road bikes. Click here to view the article
