How do I read the sidewall of my tires?

How do I read the sidewall of my tires?

Check the tire’s sidewall for a series of letters and numbers 11 to 13 characters in length. The first character should be a letter indicating the tire type, referring to the type of vehicle for which the tire is designed.

What does the 60 or 70 mean on a tire size?

The second number in the size of a metrically sized tire, most often a 60 or 70, is the height of the sidewall expressed as a percentage of the width. This is called the “aspect ratio.” People very often get this wrong, thinking it is just the height of the sidewall, forgetting that it is a percentage.

What does the information on the side of a tire mean?

The last four numbers give the date of production which let you know how old your tires are with the first two digits indicating the week and the latter two the year (for example, “2318” means that tire was produced in the 23rd week of 2018).

What does the R stand for in tire size?

radial tire
This is indicated in percentage of the tire width. “R” stands for the construction method of the tire indicating the tire is a radial tire. The following two numbers (16) indicate the diameter of the wheel rim in inches. The next two or three numbers (94) indicate the load index of the tire.

What does P mean on a tire?

Passenger Tire
P identifies your tire as a Passenger Tire. The P stands for PMetric. If your tire size starts with LT rather than a P than it identifies the tire as a Light Truck tire. 225 identifies the tire section width, which is the measurement of the tire from sidewall to sidewall in millimeters.

What is the difference between a 70r and 75r tire?

The difference will be in the height. The sidewall of a 70-series tire will be 70% of the width, a 75 series will be 75% of the width. If you want the same HEIGHT in a 70 series, then you need to go wider in the width — about 219.

What is the meaning of 215 60 r16?

215/60R16 tires are 26.2″ tall, have a section width of 8.5″, and fit wheels with a diameter of 16. The circumference is 82.1″ that translates into 771 revolutions per mile. As a rule, they can be mounted on the wheels with 16″ x 6-7.5″ rim width. In the high flotation system, the equivalent tire size is 26.2×8.5R16.

How is the size of a tire determined?

The tire size is made up of 7 factors, namely the width of the tire, the height of the tire, the type of tire, the rim size, and the load capacity and speed index. The width of the tire is shown in mm (millimeters). In the example above, the number 195 can be seen. This means that the tire is 195 mm wide.

What is the aspect ratio on this tire size?

The aspect ratio on this tire size is 60. The second number in a metric tire size is called the aspect ratio and means that the sidewall height is 60% of the section width. The tire construction of this tire size is R for radial.

How wide are car tires?

This means that the tire is 195 mm wide. The width of the tire can vary from 125 mm to 335 mm. The width always goes in steps of 10 mm. Tire sizes range from 125-135-145-155-165-175-185-195-205-215-225-235, etc. The tire width of the average middle class car is 205 mm wide.

What do the letters in the tire size mean?

The first letter in the tire size designates the tire class. An ‘LT’ would be a light truck class and no letter would be a euro-metric tire. The width of this tire size is 255mm wide.