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Flat spots on both tires (new!)
Finally, someone came up with the right, decades old solution. However it does not have to be that complicated. Many things will work to help the tire slip on the rim to the proper seating position, including mild household cleaners like Fantastik or 409, alcohol and any type of soapy water. It's also not usually necessary to lubricate anything but the problem area. It may be necessary to *carefully* overinflate until the low section "pops" out. There is nothing actually wrong with the rim, some are just harder to seat a tire than others.

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