Not quite smothy1995.
ex: 215/45R17
215 = the with of the widest part of tire in millimeters.
45 = is the height of the side wall stated as a percentage of the width. (45 means the side wall height is 45% of the tire width.)
R = Radial tire.
17 = the wheel diameter the tire fits.
V or Z = one or the other would be the speed rating on this size tire. Ths rating is stated on the side wall along with a number like 90 that stands for the maximum waite the tire can carry.
The minimum speed rating I will use is H but then I don't have a hot foot or don't do any kind of racing. Also the higher the speed rating the heigher the price and the faster the tread wears out.
