Originally Posted by Dryvlyne

Yeah, you may be right. I was just reading something that said the diameter of the clamp area is likely 26mm, but the rest of the handlebar beyond that could be less. That said, just how close to the stem should an aero bar be? I was thinking it should be about shoulder width apart so perhaps I was trying to clamp them on too far away from the stem. Geez, I really didn't expect this was going to be this much of a chore!