How long do unused tires last

They should both be mounted on the rear of your vehicle. Replacing only one tire is not as ideal as replacing two or all four tires. How old is to old for tires? Per BRMA, unused tires over six years old should never be put in service, and all tires should be replaced after 10 years from their date of manufacture. JATMA recommends inspection after five years and replacement after 10, regardless of treadwear and overall condition.

When should you replace your car? Consider the age and mileage of the car. New cars typically depreciate about 22 percent in the first year. Most people keep their car about six years before trading it in. Calculate the monthly cost of your car, including fuel, insurance, and the repairs.

Consider insurance costs. How many years is a tire good for? When properly stored in a climate controlled warehouse, tires have an almost unlimited shelf life, and once they're on the road, proper care can add many years to a tire's life. Which tires last the longest? They claim 90, miles, and Consumer Reports estimates they'll go , Why do new car tires wear out so fast?

The tire manufacturer bears that responsibility. Heat, combined with oxygen, accelerates rubber aging with the process of thermo-oxidative degradation. According to NHTSA research data , tires last less time in hotter climates, and consequentially, they fail quicker, no matter whether they are ridden or stored. The storage should also hide the tire from direct sunlight or strong artificial light, as both usually emit UV.

Tires have to be stored in a place without ozone-producing equipment, which includes electric motors, fluorescent lamps, generators, etc. Anything that can make electric discharges has to be taken away from the room. Excess exposure to ozone can cause cracking when any pressure is applied. There should be no water bodies or any other source of humidity near or within the storage room. If exposed to excessive humidity, tires last for less time — they become covered with condensation, which is highly undesirable.

Liquids are also potential sources of ozone, which is destructible for rubber. Tires should not be stored mounted or inflated, but vertically on a slightly elevated surface. Such a position will put the least amount of pressure on the tire.

Deformed tires will not regain their form when pressurized — on the contrary, they may break. There are certain things you can do to improve storing conditions and make your tires last longer:. In previous articles, we talked about how checking your tyre pressure and tread depth regularly can help to prevent your wheels from blowing out or aquaplaning.

How long do tyres last? Good question. How to find and read tyre DOT codes To the unsuspecting eye, all tyres look like same. The first two digits indicate the calendar week in which the tyre was produced. In this instance, This is followed by the year of production — for example, 19, referring to Prior to the year , the date section of the code only had 3 digits, but this was later changed to clarify which decade the tyre was manufactured in.

In the first sequence of 4 characters e. Does hot or cold affect them? Dear Patrick, I spray Protectant on the tires and hang them on rims or stack unmounted tires laying flat in a dark attic. Storing in a cool place is best; neither extreme cold nor high heat is good for them.

I have installed Ridge Vents to keep my attics cooler for storage of tires among other things in hopes of reducing the continued vulcanization that can harden the tread over time. But avoiding sunlight and protecting them from ozone damage are even more important.

Modern rubber compounds used in bicycle and car tires are formulated to resist cracking due to environmental hazards such as ozone, oxygen, UV radiation and heat, but that only goes so far. Tire manufacturers add waxes, antioxidants, and antiozonants to their rubber compounds to help protect tires against deterioration by ozone, oxygen, and heat, but the tire must be flexed frequently to squeeze the wax and some other protectants out onto the surface.

If the tire just sits, the wax eventually disappears from the surface, allowing ozone, which breaks bonds inside elastomer molecules, to attack the rubber. If driven occasionally, some protectants will come to the surface and prevent cracking. Also, washing the tires a lot removes waxes, antioxidants and antiozonants designed to protect the surface of the tire, causing tires to age prematurely.

And it makes them look beautiful and shiny. I have recommendations from a number of tire manufacturers below. She has a bunch of sweet bikes and goes years between using them, as her passion is riding horses; she spends her rare free time doing that and not riding bikes. The tires on all of her bikes look good and are not cracked, despite there being a window in the garage in which they hang.

I believe that this is thanks to my coating them with