Which of the following is not a common sign of tire wear indicating replacement is needed?

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Understanding what tire wear signs mean helps you decide when to replace a tire. When a tire shows wear-related problems, you’re looking for depth and integrity issues: tread that’s worn down to unsafe levels, cracking in the sidewall, or a bulge or blister in the tire structure. Excessive tread wear means there’s not enough rubber left to grip the road safely. Sidewall cracks indicate the structural rubber is compromised and could lead to a blowout. A bulge or blister points to internal damage or ply separation, which is a serious failure risk and requires replacement. Jewelry stuck in the tread, while potentially a nuisance or a puncture hazard, is not a sign of wear from use and does not by itself indicate the tire should be replaced due to wear. Remove the object and recheck for damage, but this finding doesn’t reflect tire wear indicating replacement.