Posts Tagged: Tire sidewall indentation

A tire indentation is normal, a tire bulge isn’t — Learn the difference

A tire indentation in the sidewall is a perfectly normal part of the manufacturing process Tire indentation in the sidewall, or “undulation,” is a normal result of radial tire construction. The undulation is formed during the manufacturing process as tire plies are wrapped around a mold. The plies start at one tire bead, go up the sidewall, across the tread area, down the opposite sidewall, and finally to the opposite tire bead area. The plies are wrapped side-by-side and as the wrapping is finished, the final wrap overlaps the first … Read More