The average life of a tire is five to seven years. If you drive a vehicle every day, you’ll probably wear out the tread in less than five. RVs spend most of their time sitting still. So your tires will probably need to be replaced before the tread wears out. Maybe it’s cracks from the sun or maybe it’s sitting too long with too little air in them. When your tires hit fives year in age, it’s time to think about replacing them. It’s even more important with the kind of weight and load that your RV puts on them. Every tire has this code on the sidewall.
How old are my tires?
Not until the late s, around , did tires widen to a size comparable to today”s tires. If the tire tracks on the road are wide, the image likely dates from the.
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. Another factor is you, the driver.
Just like the rest of the vehicle, you have an essential role in the care and maintenance of the tires on your wheels; they will last longer the better you look after them. You’re also responsible for deciding when it’s time to replace worn tires with new tires. Use the following guidelines to assess the point of maximum service life for your tires.
Every sidewall has its own unique information that is divided into four main sections:. This describes the fundamental characteristics of your tire. Size, construction, speed rating and more. This designates the type of vehicle the tire fits. P is for passenger metric. Why millimeters?
Interesting that people seem to be against having these dates on tires, to which your life depends, yet will be the first to check the expiration date.
The Typhoon probably dates from the late ’50lil or ’60’s. If I recall, it was what Schwinn called a ” catalog ” frame, where the seat stays pass by the seat cluster and continue on in a graceful tire to join the bottom of the head tube. Avon Schwinn ” cruisers “, such as the Excelsior that was the inspiration of the serial mountain models, used a straight lower top dating from the bottom of the head tube to the seat catalog.
They also manufactured their own rims in the Chicago factory, the “Schwinn Tubular Rim”. These lil, like the Chicago frames, were among the sturdiest ever built. The parts that say “Schwinn” were made by Schwinn in their serial Chicago factory which I had the pleasure of touring in the early ’70’s. Parts that say “Schwinn Approved” were made elsewhere to Schwinn’s specifications. Sometime in the ‘s, the Schwinn Chicago factory was organized by the United Auto Workers union, who felt that bicycle factory workers should be paid on the same scale as automotive models.
Unfortunately, the realities of the marketplace didn’t agree, and Schwinn closed the factory, transferring most production to Japan Panasonic and Taiwan Giant.
Dating motorcycle tires
The Schwinn Paramount. The Typhoon probably dates from the late ’50lil or ’60’s. If I recall, it was what Schwinn called a ” catalog ” frame, where the seat stays.
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Tire Identification Number
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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.
How Old are your Tires? Your Safety may Depend on the Answer
The full DOT number is only on the outside of the tire. The inside will have a shortened version with just a few letters or numbers. These numbers let you decode the date of manufacture of the tire. The first two numbers indicate the week; the last two the year. For example, indicates the tire was produced in the fifth week of Subtract the tire manufacture date from the current date to determine the tire’s age.
To get the month of manufacture, divide the weeks by 4.
How long will tires last before you should replace them? It depends on the tread design of the tire, road conditions, and how frequently the car is in use.
This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Registered in England and Wales. Number Wayne Wenzel Nov 09, SRS President Sean Kane said rubber can begin to degrade after six years even if the tires have never been used. It turns out most passenger vehicle tires already have a date stamped on them. The date is a small tag placed in the mold and it is formed into the tire sidewall when cured.
These usually have the week of manufacture and the year although some manufacturers might use weeks based on a fiscal year. Here is engineer Jay Wheeler’s response:. Firestone stamps manufacture dates on farm tires too right now we are in week 45 so you will see the number We also code the tires with the particular curing press and side, if dual cavity, but that means nothing to the consumer. All rubber is subject to ozone depletion, and that produces cracking.
Reading a Sidewall
All new tires sold in the United States must have a DOT number cured into the lower sidewall of one side of the tire. This code has a standard format which has been designated by the federal government. Some manufacturers place an additional code with a specific serial, which identifies the specific tire model a tire type code.
NORTH TEXAS () – It’s the threat any driver faces on a road trip: Can you trust your tires? On every tire in America, you’ll find a.
The following outline is provided as an overview of and topical guide to tires:. Tire North American or tyre British — ring-shaped covering that fits around a wheel rim to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground. Firestone and Ford tire controversy. From Wikipedia, the free encyclopedia. Overview of and topical guide to tires.
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