Tires are just about the most important part of your car. If they’re in bad shape, the car’s ability to accelerate, stop, and turn in all conditions is greatly compromised. Everybody knows to replace tires when the tread gets down to the wear bar, but what about when they get too old? The rubber in tires deteriorates over time due to UV and environmental exposure. The resulting “dry rot” leaves tire structure brittle and leads to sidewall damage and eventual failure. This isn’t “Oh I’ll just fill it up and drive on it.
How old are my tires?
At first glance, you look at the sidewall of your tire and think, “’Do I need a super secret decoder ring to read this?” In addition to the model name of the tire there.
For years, people have relied on tread depth to determine when to replace a tire. If the tread passes the ” penny test , ” they assume the tire still has life, regardless of how old it is, which can be a fatal mistake. Old tires are dangerous, regardless of tread depth. While there’s no federally sanctioned safety guidance on when a tire is too old to be safe, many carmakers recommend replacement at six years from the date of manufacture.
When he was driving two weeks later, the tread suddenly separated from the tire. The Explorer went out of control and hit a motorcycle, killing its rider. An analysis of the used tire revealed that it was nearly 10 years old.
Tire Identification Number
If not — you should. They may last another three years, but your tread has little to do with it. What is more essential is the age of the tire. Tires are made of rubber, obviously, and when rubber gets old, it starts to dry and crack often times from the inside out — this process is not always visible to the naked eye.
The last four digits of this code tell you when your tire was manufactured. The first two numbers indicate what week of the year it was made (out of 52 weeks per.
The width indicates the widest point of a tire from sidewall to sidewall. Some tires have a P or LT in front of the tire width, identifying them for passenger or light truck use. The aspect ratio is the dimensional relationship of the section height to the section width. Tires with an “R” indicate radial tire construction. The load index number and speed symbol correspond to the maximum load-carrying capacity of the tire and its maximum speed capability.
The diameter is the size of the wheel from one side to the other. The DOT tire identification number indicates compliance with all safety standards established by the U. Department of Transportation and provides additional information about the tire manufacturer. The UTQG code provides consumers with information on tire treadwear, traction, and operating temperature resistance.
The sidewall of a tire includes a variety of important information. The numbers and letters identify dimensions and performance standards that allow you to compare tires more accurately and efficiently. This diagram will help you to understand those numbers and letters. For assistance in selecting a replacement tire, always consult your Toyo Tires dealer.
The load index is an assigned number that corresponds with the load-carrying capacity of the tire.
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The alpha numerical coding on the sidewall of Dunlop motorcycle tires can be confusing. It is important to understand these codes to insure you are getting a safe tire that will work on your particular motorcycle. Dunlop tire codes utilize metric measurements. Metric sizing is the most widely used and has the most information. Simply put, the higher this number is, the taller the tire will be.
Understanding Dunlop Tire Codes. The alpha numerical coding on the sidewall of Dunlop motorcycle tires can be confusing. It is important to.
Summer tyres. Winter tyres. All-season tyres. Bridgestone Tyres. Continental Tyres. Firestone Tyres. Your vehicle. Viewed products. Tyre fitting. Surname or VAT no. Check order status. Do car tyres have an expiration date? Does the age of a tyre actually matter?
Why I No Longer Date Tire Kickers & Why You Shouldn’t Either
The U.S. Department of Transportation (DOT) requires that every tire manufacturer provide a standardized identification number or code. This consists of the.
If you’ve ever wondered how old your tires are, it’s an easy bit of information to find out. Tires actually have a “born-on” date, and it’s listed right on the tire itself. Almost everything you need to know about your tires is molded into the sidewall and coded according to federal requirements, including the specific week and year when a tire was made. To read the date on a tire, look near the edge of the rim for a series of characters starting with the letters DOT.
This code can tell you the manufacturer of the tire and the factory where it was made, as well as provide lot-specific information used for tracking in case of a recall. The last four digits of this code tell you when your tire was manufactured. The first two numbers indicate what week of the year it was made out of 52 weeks per year , and the second two numbers represent the year. For example, would reveal that a tire was manufactured during the 52nd week of the year Prior to the year , DOT coding was slightly different.
If you have a tire that doesn’t match the coding you see in our example, it was likely manufactured before and should be retired as a safety precaution. It’s always a good idea to have a tire professional inspect your tires when having them reinstalled on your vehicle after storage.
Understanding Dunlop Tire Codes
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When it comes to motorcycle safety, the tires you use are an integral part of keeping your bike on the road. Knowing how to tell the age of a tire is.
Top definition. I’ve gotta get rid of this spare tire. Aug 26 Word of the Day. That Shit Is Fucked. Guy 1 : Gawd Damn this is some good ass ice cream. Guy 2 : Let me get a lick of that shit dawg. As in, “What’s a Jack for? I had the spare tire hand in the big blind and was pleased when the flop came out A 4 4. In a group of five friends, the fifth friend can be considered a spare tire.
The spare tire is there to replace one of the other friends if they should become absent. The fifth friend is usually the least liked, and is only enjoyed by the others when their numbers start to shrink. The spare tire is easily replaceable and cannot do anything against the group or risk being replaced. The spare is also subject to harsh criticism by the four. As Jimmy was sick that day , Daniel the Spare Tire , would get to take his place.
A frequent question about tire maintenance concerns service life. How long will your tires last before you should replace them? The answer depends on different factors such as your driving style, the tread design of the tire, regional climate, road conditions, and how frequently the car is in use.
Some tires have a P or LT in front of the tire width, identifying them for passenger or light truck use.
The condition of the tires on a car are what determines a car’s capabilities in terms of acceleration, braking and cornering. The rubber on a car tire degrades over time, and tire warranties can be tied to manufacturing dates. Every tire sold in the United States has a date code stamped on it. The date code will let you know when tires need to be replaced.
Use a flashlight to find the Department of Transportation code on the tire. Read the last two digits of the DOT code. The last two digits are the year of manufacture. If the last two digits are 07, for example, the tire was manufactured in The two digits before the year indicate the week of the year that the tires were manufactured. There are 52 weeks in a year, so these two digits range from 01 to Remove the tire or get under the car if the DOT code on the outer side wall of the tire is less than 10 characters long.
The full DOT code is required to be only on one sidewall of each tire. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us.