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5 answers

P=Passenger, as opposed to LT, light truck
215=section width in mm or 8.46" at its widest point (sidewall to sidewall, NOT tread width).
70=aspect ratio of height to width (70% as tall as it is wide) also known as profile or series.
R=radial, as opposed to Bias-ply or Bias-belted (now archaic)
15=rim diameter in inches.

Assuming that you want to know what different sizes can work while maintaining a similar overall tire diameter, the Plus "0" fitment rule of thumb is:

Section width: add 10 mm (215 to 225)
Aspect ratio: subtract 5% (70 to 65)
Rim diameter does not change (hence the "0". Plus "1" adds an inch, Plus "2" two inches, and so forth).

IN THEORY

The real world fitments must account for the individual vehicle clearances.

Remember: 3 #s=section width
2 #s =section height (aspect ratio)

This is true for P Metric, LT Metric and Euro Metric nomenclatures. Light Truck High Flotation nomenclature gives you the overall diameter, section width and rim diameter in inches (e.g. 31x10.50R15: 31" tall, 10 1/2 " wide, on a 15 " rim).

There are at least 3 other tire nomenclatures, but let's just stick with the most common ones.

Have your local tire professional give you more expert advice on tire sizing and what it all means.

2006-11-05 17:51:54 · answer #1 · answered by d_cider1 6 · 0 0

the 215 is the tread width <- ->.. the 70 is the height of the sidewall ,from the rim to the tread(40 is thin 70 is taller tire).. and the 15 is the rim diameter. there is a specific equation that tells the exact figures, but the 215 should equal about 215 millimeters, the 70 is also in mm, and the 15 is in inches. If you are replacing tires, it is always best to stay with the same circumference due to electronic speedometer/transmission concerns. A example of tire that has the same rolling circumference is a 225/70r14 has the same as a 225/60r16, both have a 229mm rollingcircumfrence, or overall around. The above answer is incorrect, as the 215 is the tire tread width.. a 195 is more narrow than a 225.. a 225 is more narrow than a 275..etc..

2006-11-05 12:20:06 · answer #2 · answered by tdot 3 · 0 0

Unfortunately, there are no other sizes. 215 70 15 is the size of the tire. The most important part is the 15. That is the diameter of the rim. The other numbers can be tweeked a little. 70 is the tire width, 215 is the tire height. As long as the first two numbers are close, they will fit on the car without causing any issues.

2006-11-05 12:17:29 · answer #3 · answered by Steiphyn Daemon 2 · 0 0

You have specified a specific size. The 215 is across the roundness of the tire. Likely there is a 225 and a 235 which would have a larger rolling radius and a more bulky tire. They would fit on your 15 inch rim. 70 is the rim width.

2006-11-05 21:34:57 · answer #4 · answered by Anonymous · 0 0

205/75/15 would be almost the same height but a little narrower.
215/65/15 would be pretty close, a little shorter and slightly wider.
225/60/15 close also, would appear bigger all around.

2006-11-05 17:56:52 · answer #5 · answered by shel_bug66 4 · 0 0

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