Improving on the original S-Works Aerofly the S-Works Aerofly II takes the knowledge of countless Win Tunnel hours and transfers it into handlebars that are not only fast (you save around 20+ seconds over 40k) but that also have a myriad of features that make them comfortable. Starting with the tops you'll find a textured surface that ensures your hands stay in place in when it's wet plus there's a step that makes bar tape even with the tops of the bars for both comfort and a clean look. Next up we took feedback from our World Tour teams and pushed the airfoil forward and this ensures more forearm and knee clearance. And finally we made the Aerofly II lighter. In fact at a mere 235 grams in size 42cm its the lightest aero road bar in its category. Consider it aero without compromise.