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OK just built wheels with decent brand name non-Chinese tires, but the REAR TIRE has a slight wobble. The rim is perfect, it's just the tire, and I have re-seated it twice. The tire is out by around a credit card width for 3 spokes.
Which option
(1) Leave alone, it's the rear wheel so you won't notice it. The tire might settle down as it's brand new
(2) Make the rim slightly imperfect to reign in the tire