Originally Posted by
rapwithtom
Tire roundness question
In mounting tires (Vittoria Open Pave CG 25's; Conti 4000's; Conti Force/Attacks) to my Zipp 404's (clincher) with latex tubes, there's always some wobbliness. You can see the center of the tire wiggle slightly as you rotate the wheel, and you can see that the bead is not always perfectly roundly set into the wheel. (The wheels with no tire have no wobbliness - they're true).
I often repeatedly mount the tire, while paying careful attention to the lay of the latex inner tube, just to minimize this, but I never get it perfect.
Now I've started riding rollers, and on the rollers you can feel the asymmetries in the tire mounting (or perhaps it's partially an imperfect lay of the latex tube?).
My question is: Do others have this issue? What's a tolerable level of asymmetry? What does everybody do to minimize this?
I have the Vittoria Open Corsa CX on my (not my son's) bike with a latex tube and it is pretty straight. If I see much of a wobble I think the tube may be pinched. Latex gets more easily pinched. If its mounted correctly and no tube pinch, while it may bug you it things are seated and not pinching is taking place it's fine. I doubt that is hand applied tread, but hand applied tread does this often.