225/85R16 tires have a diameter of 31.1", a section width of 8.9", and a wheel diameter of 16". The circumference is 97.5" and they have 650 revolutions per mile.
255 (Tire Width): The tire width is 255 millimeters from sidewall to sidewall (just over ten inches). 45 (Aspect Ratio): The tire's sidewall is 45% of the tire's width, which means the sidewall is about 114 millimeters or just over 4 inches.14 Jun 2021
255/85R16 tires have a diameter of 33.1", a section width of 10.0", and a wheel diameter of 16". The circumference is 103.8" and they have 610 revolutions per mile. Generally they are approved to be mounted on 6.5-8" wide wheels.
Who makes 255 80R17?
Toyo TireOpen Country A/T IIILT255 /80 R17 121R E1 BSW.
The number 70 is the aspect ratio, sometimes called the profile. This is the ratio of the sidewall height to the width. The sidewall height can be calculated by multiplying the ratio (70 or 0.70) by the width (225): 225 millimeters x 0.70 = 157.5 millimeters.