Speed Rating
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Steel Radial Speed rating
That is the speed rating of the tire, S, followed by an R which indicates the tire is a radial tire. The S speed rating indicates the tire is designed to run at a sustained speed of 106 mph and no more.
black side wall
standard radial
It is the tenths place followed by hundredths followed by thousandths ... etc
Building sides/floors and exposure designations - Unless indicated otherwise by command, the front of the building will be side A, followed in a clockwise fashion by side B, side C, and side D. Each floor of a building will be identified by number with floors below the main floor identified as 01, 02 etc. Exposures will be identified by the appropriate side letter followed by a number. (Example: the second exposure on side B is exposure B-2.)
Front to back, no. Side to side, yes. If the tires are directional, no.
On the side of the tire there is a big long number such as P225/50R16 91S If the letter in the position where R is is R they are radials. 98% of tires nowadays are radials
No, reason: trailor tires are made so that the side walls can take the strain of "road sway" while pulling a trailor. if you've ever followed someone towing a trailor you might have seen it swaying back and forth from time to time. car tires are not designed for that kind of stress.
Letters on a license plate are put together on one side, and numbers as well on the other side. So you can say it is a letter O if it is followed by a letter, and it is a zero if it is followed by a number. Moreover, number is smaller, while the letter is more rounded.
Read the side of the tires and it will tell you. It's written on the side of the tire.