The Profile Design Ozero Base Aerobar is a lightweight and competitive aerodynamic handlebar for use on bikes for time-trials and triathlons. The aluminum construction has been constructed with and advanced aerodynamic design using Hydroform technology. The design has been pre-slotted to accommodate clean internal cable routing. The 120mm center clamp section is optimized for Profile Design clip-on aerobars. Profile Design introduced themselves in 1988 with their first Aerobar. Today, athletes around the world clutch their bars, wear their brand and depend on their components to do more with a slice of time than they ever imagined possible. You’ll find their products at every level of competition.