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The Penny Test. There are several popular ways to check your tire tread depth. One easy way is the penny test. Simply insert a penny into your tire's tread groove with Lincoln's head upside down and facing you. If you can see all of Lincoln's head, your tread depth is less than 2/32 inch and it's time to replace your tires.
Place a penny into several tread grooves across the tire. If part of Lincoln's head is always covered by the tread, you have more than 2/32" of tread depth remaining. Place a quarter into several tread grooves across the tire. If part of Washington's head is always covered by the tread, you have more than 4/32" of tread depth remaining.
The Penny Test. In the United States, tire tread depth is measured in 32nds of an inch. New tires typically come with 10/32” or 11/32” tread depths, and some truck, SUV and winter tires may have deeper tread depths than other models.
Tire Tread Depth. There are tread wear indicator bars in the main grooves of the tire that become level with the tread surface at approximately 2/32 remaining tread. This is not recommended and tires at this depth should not be driven on long especially in the winter. 3-4/32 is a much more safe tread depth to replace tires at.
Quarter Test. The quarter test can show if your tread depth has worn to or below 4/32nds of an inch. To perform the quarter test, take a quarter and place it into your tread groove with George Washington’s head facing downward. If you can see the top of Washington’s head, then your tires have worn below 4/32nds of an inch.
Tread Depth. Useable tread depth is calculated by subtracting 2/32" from the tires' new tread depth. Then usable tread depth is compared to remaining tread depth in order to calculate tread wear percentages. For example, a tire that started with 10/32" of original tread depth and has worn off 4/32" (down to 6/32" of remaining tread depth) is 50% worn.
tread depth A measurement the tread grooves on a tire usually measured in 32^nds of an inch. Tires which are at the end of their useful life usually have between 2- and 4- 32^nds of an inch of tread remaining.
Our half-tread tires began to skim over the water's surface at as slow as 40 mph in our hydroplane test, about 3 to 4 mph slower than the full-tread tires. As the chart in All-season-tire wear ...
Sufficient tread depth in one area of the tire doesn’t compensate or cover for insufficient tread depth elsewhere on the tire. If the top of the Lincoln Memorial is covered, then you have more than 2/32" of tread.
MICHELIN ® TRUCK TIRE REFERENCE CHART XZA ® • Excellent steer tir e for regional operation • Desig ned for long mileage and even tread wear • Zig-zag design for tr ue all-position use LH R O/O U 8R19 .5 Tread Depth MICHELI N® XZA ® 16 Goodyear ® G171 LT 18 Bridg estone ® N/A XZY 3