You will find in the tread of all tyres that there is a little piece of rubber which crosses the tread itself.
When the tyre is new, and the groove part of the tread is OK, this mark will be seen at the bottom of the grooved section of your tyre.
when the trye is worn, the grooved section of the tyre is very shallow and outer surface of the tyre (the part in contact with the road) is level with this mark, the tread depth has reached 6mm and has to be replaced.
regards, Ade
To change an actual tire you need a tire machine to get it off the rim and the new one on. -If you mean the change the WHEEL and tire on a car, then you just need a jack and a tire wrench.
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A change in overall tire height will change speedometer accuracy.
No, you have to buy a wider tire.
Yes, a flat tire is considered a physical change because the rubber material in the tire is simply being compressed and there is no change in the chemical composition of the rubber.
No, you change it like any other tire.
sell the car you shouldn't be around it if u cannot change the tire
To change a front tire, place the jack directly behind the tire. To change a back tire, place the jack directly in front of it. Try to get the jack under the tire axis.
No. Nothing changes in its chemical nature.
No, inflating a bike tire is a physical change because it does not change the chemical composition of the tire or the air being pumped into it. When air is added to the tire, it simply increases in volume and pressure without altering its chemical properties.