Aero bars are either attached to the handlebar or is apart of the body. Aero bars allow for a rider to maintain a very aerodynamic position. – Basti
bike handlebars or attached to them extensions that allow rider to maintain aerodynamic, similar to a ski racer’s tuck. Positioning your hands and arms out in front effectively minimizes your profile, decreasing wind resistance, while increasing your comfort by resting your upper body on elbows/forearms.
