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.
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Speed Rating
black side wall
standard radial
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
Read the side of the tires and it will tell you. It's written on the side of the tire.
check the side of tires. most tires are different!
That depends. My 2006 Grand Prix GXP has different size tires in the front and back, so you can't rotate the tires, you can only switch the right side tires with the left side.
The proper pressure for you vehicle's tires will be listed on the label on the driver side door jamb.The proper pressure for you vehicle's tires will be listed on the label on the driver side door jamb.
you may nee to check the alignment of your tires...that would cause a car to drift to a certin side
it means you have low air pressure in one or more of your tires, check all tires for proper inflation (there should be a sticker on the drivers side door or door jamb that says what pressure you should have in your tires