How to Determine Percent of Tread Worn
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Obtain the original tread depth of the new tire
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In the groove closest to the center, measure the used tire to determine the tread remaining in 32nds of an inch.
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The percentage worn is indicated where the tread remaining line (above chart) meets the original new tread depth column.
- To determine the adjustment charge, multiply the percentage of tread worn by the current dealer retail selling price.
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