Originally Posted by
Willbird
Well the machinist in me says.....
1. Find out how much "hop" the tire has.
2. Find out how much "hop" the wheel has
Maybe if you do not want to true the wheel (assuming it has some runout)...you can index the tire so the two cancel and it the tire seated on the rim runs more true. Many folks index the tire label at the valve stem, so to begin with I'd move it 180 degrees off, and try that, if no joy try 90 and 270 degrees.
Bill
Definitely I'd do step 2 first as it's easiest and at least as likely to be the problem. Put a fat cable tie on the seat stay next to the rim, cut it short, run it against the edge of the rim. Spin the tire slowly and see how the rim rises or falls relative to the cable tie. A couple of turns of a spoke wrench might be all it takes. But this problem will likely come back with this fit. It will need to remain well adjusted. I like the filing the brake idea too, if it looks mechanically safe.
Anyway, refer to the first reply.