QA

Quick Answer: How To Measure Tire Tread

Take a standard U.S. Penny and insert it into the tread, with Lincoln’s head facing down and out. If you can see all of Lincoln’s face, your tread depth is below 2/32 of an inch, and you need new tires. Check your tires in multiple locations to be safe.

Is the penny test for tires accurate?

For years, motorists have been told the “penny test” is an accurate indicator of whether or not you need new tires. The test is conducted by sticking a penny head down in a tire tread; if you see all of Lincoln’s head, then you should change the tires. The one with an eighth of an inch of tread stopped in 300 feet.

How do you measure tread depth without a gauge?

Use a Quarter A simple way to check tread depth is using the nickel or quarter test. Hold a quarter or nickel between your thumb and forefinger and place the coin inside the channel, with the top of the figurehead’s head facing the tire.

What is good tire tread depth?

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. The U.S. Department of Transportation recommends replacing tires when they reach 2/32”, and many states legally require tires to be replaced at this depth.

How many 32nds is a new tire?

New tires have an average tread depth of 8 to 9 millimeters (10/32 to 11/32 inches). As you drive, the tread will wear down. A tire with a tread depth below 1.6 millimeters (2/32 inches) lacks grip. Braking distance and vehicle control are impaired.

How many miles are tires good for?

Your tires should last 50,000 to 60,000 miles on average. But that really depends on the manufacturer. Some manufacturers build their tires to last up to 80,000 miles, while some design their tires to last as little as 30,000 miles. You can see how many miles to expect out of a tire by checking its treadwear rating.

How do you measure tire tread with a Canadian quarter?

The quarter test A classic way to measure winter tire wear is to use a quarter. Insert a 25¢ Canadian coin in one of the grooves with the caribou facing down. If you see the tip of its nose, it means the tread depth no longer meets 6/32”, so the tire probably won’t last all winter or 10,000 km.

How do I check tire tread without tool?

Take the penny and insert it, upside down, inside the grooves on each tire. If the top of Lincoln’s head is covered by the treads, the car tire has at least 2/32″ of tread remaining. This is the minimum recommended tread depth for a car tire. If you can see Lincoln’s head, it is probably time to look for new tires.

How do you measure tread depth with a ruler?

Ruler: Using a ruler is also an easy and accurate way to check tread depth. Measure between your tread lines with a ruler and use the 1/16” scale. Just remember that 1/16” is equal to 2/32.

Is 60 percent tire tread good?

Used tires tread can be up to 90%, but the average is 6-8/32”. Tires in good condition should have a minimum of 6/32” to be useful, or 4/32” if the tire is 13-14”. The average legal minimum tread depth is 2/32”, but driving becomes unsafe with such a tread.

Should I replace tires at 4 32?

The Tire Rack’s advice is that if rain and wet roads are a concern, you should consider replacing your tires when they reach approximately 4/32″ of remaining tread depth. Since water can’t be compressed, you need enough tread depth to allow the rain to escape through the tire’s grooves.

How many mm tread before changing tires?

Fast facts: When to replace tires You must replace tires when the tread depth falls below 1.6 mm, which is the legal limit. Continental recommends changing summer tires at 3 mm and winter tires at 4 mm tread depth; after this point safety and performance characteristics are not optimal.

How good is 4 32 tread?

6/32″ or higher: Your tire’s tread depth is sufficient. 5/32″: If snow-covered roads are a concern, you should consider replacing your tires. 4/32″: If you frequently drive on wet roads, consider replacing your tires. 2/32″ or lower: Your tires are legally bald, and it’s time to replace them.

Is 4 32nds of tread depth legal?

According to Federal Motor Carrier Safety Administration (FMCSA) regulations, the minimum tread depth for a steer tire is 4/32 of an inch on every major tread groove. If one spot on one groove is less than 4/32, then a driver will be issued a citation.

How many 32nds is the wear bar on a tire?

How deep is the wear bar on a tire? The tread wear bars on a tire sit precisely at 2/32″. This is the minimum allowed tread depth on the tires.