So what’s in Litespeed’s secret sauce? The first ingredient is “aerologic,” Litespeed’s design philosophy. Starting with the frame, Litespeed built the downtube with a concave shape where the bottle bosses live. This aero shroud around the bottle actually helps make the bike faster with a bottle onboard than without. And when playing the role of Sherpa, this was something we were particularly happy to hear. Up front is a bowed fork and tapered head tube. The seat tube has a small cutout to help the rear wheel get tucked in as close as possible.