Aerodynamic road bikes with Integration are prevalent out there in which the integrated handlebar has no cylindrical bar bore for Clip-On Aero Bars. Controltech is the believer of ITU regulation in which road bike should always use mini Aerobar instead of long extension bar. With the Sirocco Clip-On Aero Bars, you'll be able to dial-in your TT position on most of the handlebar by Stem-Mounted Position or Handlebar-Mounted Position.