Originally Posted by
Schwinnsta
I have a few questions, on my bar there is bulge and they taper. Is this a problem. The clamp is 31.8 but tapers. Is this a potential prombem?
Is it problem if force is place on it in its highest position? Is there much flex?
Is Ron Damon's door knob analogy valid for this case. I guess what he is saying is it creates more torsional flex. He can correcty me if I missed the point of his post.
You are correct, the tapers are a problem, you cannot clamp there. This is an issue with me wanting to mount some Profile aero bars that have a wider clamp base, so my double-clamps would be on the tapers, no good. And I can't find bars with a wider center section, or narrow with step and not taper. So I'm going to need to mount those past the tapers where it is 22.2mm diameter, way wide but possible, but not a standard size for the double-clamps, so I'm gonna need shims to use at 25.4mm diameter clamp. The good part is, a wider mount base means less torsion into each double clamp when climbing standing and pulling on the bars alternating.
The other possibility is using a constant-section handlebar (like a Ti bar I have with a center shim), that will eliminate the tapers and I can put the double clamps just outboard of the aero bars.