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P identifies your tire as a Passenger Tire. R indicates the construction used within the tires casing. R stands for radial construction. B means belted bias and D stands for diagonal bias construction. 17 The last dimension listed in the size is the diameter of the wheel rim, which is most often measured in inches.
Does the R in tire size matter?
For example, this aspect ratio of 60 means that the tire’s section height is 60% of the tire’s section width. R indicates the construction used within the tires casing. If a tire size reads, LT235/75R15 104/101S, the LT indicates that this tire is meant for Light Truck use.
What does R18 mean on tires?
The figure “18” indicates the wheel rim diameter in inches, while “95” is the load index, indicating the maximum weight the tire can bear; 95 equates to 650 kg. Then comes the letter “H” which is the speed index, where “H” signals a maximum speed of 210 km/h.
What does 55 R mean on a tire?
In our example, the 55 means that the sidewall height is 55% of the 205-mm tread width. Construction. The letter following the profile height identifies the tire’s construction. Most tires sold today are an R, which means they are of radial tire construction.
What does r20 mean on a tire?
Bias Belt. D. Diagonal. 20. The tire size was designed to fit rims or wheels that are 20 inches in diameter.
Can I use 55 tires instead of 65?
The 55 is the “height” of the tire. Generally not recommended as the new tire is about 6% smaller than the older one. From a strictly ‘will it fit’ stand point, yes. 205 is the height, the 55 is slightly wider than the 65 (it’s a ratio); and the 16 is the rim diameter.
Can I use 60 instead of 55 tires?
Most likely yes. The 55 or 60 in this case is the aspect ratio. It’s how tall the tire is as a percentage of its width. A 60 means the tire’s sidewall height is 60% of the width of the tire.
What does 50r mean on tires?
50 is the two-figure aspect ratio. This percentage compares the tire’s section height with the tire’s section width. For example, this aspect ratio of 50 means that the tire’s section height is 50% of the tire’s section width. R indicates the construction used within the tires casing. R stands for radial construction.
Can I use 245 tires instead of 235?
So you have already identified the difference between 235 and 245 size tires. It is obvious that 245 is bigger than 235, still, both tires’ sizes are pretty common and could be interchangeable at times.
How do you read a tire rating?
The first two digits (87S) represent the tire’s load index and are followed by a single letter (87S) identifying the tire’s speed rating. “Using a P195/60R15 87S tire size as our example, the 87S at the end of the size represents the tire’s service description.
What does 55R16 mean?
55. This number means that your tire has an aspect ratio of 55%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 55% of the width. In this case, the sidewall height works out to be 112 millimeters. R.
What size is 205 55R16?
205/55R16 tires are 24.9″ tall, have a section width of 8.1″, and fit wheels with a diameter of 16. The circumference is 78.1″ that translates into 811 revolutions per mile. As a rule, they can be mounted on the wheels with 16″ x 5.5-7.5″ rim width.
What does 205 55R16 mean on a tire?
Using our example size, 205/55 R16, this is what each number means: 205 is the width of the tyre tread in millimetres. 55 refers to the profile of the tyre, or the distance between the wheel and the edge of the tyre, looking at it from the side. The number is the percentage of the width of the tyre.
What size is a 275 55 20 tire?
Plus Sizes 275/55-20 285/55-20 Diameter inches (mm) 31.91 (810.5) 32.34 (821.5) Width inches (mm) 10.83 (275) 11.22 (285) Circum. inches (mm) 100.25 (2546.26) 101.61 (2580.82) Sidewall Height inches (mm) 5.95 (151.25) 6.17 (156.75).
What are 275 tires?
The numbers in the tire size refer to its width, aspect ratio, and wheel diameter. “275/35R19″ means the tire is 275 mm wide, has an aspect ratio (that is, the width divided by the height) of 35%, and fits on a 19” wheel.
How much taller is a 305 tire than a 275?
Plus Sizes 275/55-20 305/50-20 Width inches (mm) 10.83 (275) 12.01 (305) Circum. inches (mm) 100.25 (2546.26) 100.56 (2554.11) Sidewall Height inches (mm) 5.95 (151.25) 6 (152.5) Revolutions per mile (km) 632.04 (392.73) 630.1 (391.52).
Can you put 205 55R16 tires?
Yes it will be completely fine, in fact 205/55/16 are the most common 16″ tires.
Which tire is wider 45 or 50?
got that 1 wrong, the 45 and 50 is a percentage of the width, so the difference between 45 and 50 profiles is 5% of the width.
What is the difference between 215 55R16 and 205 55R16?
The width of the tire 205/55R16 is 10 mm narrower than the 215/55R16, they are OK, it wouldn’t cause any problem. That shouldn’t be an issue as long as you replace all four tires.
Which tire is wider 50 or 60?
For example, a 60-series tire features a sidewall that is 60% as tall as the tire’s section width. A 50-series tire will feature a shorter sidewall, at 50% of section width.
What does r16 mean on a tire?
65 – This number is the Aspect Ratio, the ratio of sidewall height to width. R – Radial. 16 – This number designates the tire’s diameter in inches (i.e. 16″).
How much difference in tire size is acceptable?
When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Any more than this and you face the risk of brake failure.
