Question

1. in the tire size p215/60r16, what do the numbers 215, 60, and 16 represent?

1. what does the r in p215/60r16 mean?

• a) run-flat tire
• b) radial construction
• c) reinforced sidewall
• d) racing compound

1. from the sidewall example, circle the correct statement about 95h.

• a) 95 = maximum psi and h = tire height
• b) 95 = load index and h = speed rating
• c) 95 = treadwear rating and h = heat rating
• d) 95 = wheel diameter and h = ply count

1. the dot date code is 2319. what week and year was this tire manufactured?

1. true or false: you should inflate the tire to the max press listed on the sidewall.

Explanation:

Question 2:

215 is the tire's section width in millimeters, measured from sidewall to sidewall. 60 is the aspect ratio, the percentage of the section width that equals the tire's sidewall height. 16 is the diameter of the wheel (in inches) that the tire is designed to fit.

Question 3:

The 'R' in tire sizing specifically denotes the tire's construction type.

Question 4:

Tire sidewall markings like '95H' follow a standard where the numerical value is the load index (maximum weight the tire can support) and the letter is the speed rating (maximum safe speed for the tire).

Question 5:

DOT date codes use a 4-digit format: the first two digits are the week of the year, the last two are the year of manufacture.

Question 6:

Vehicles have a recommended tire pressure (found in the door jamb, owner's manual, etc.) that is tailored to the vehicle's weight and handling; the MAX PRESS on the sidewall is the absolute maximum the tire can hold, not the recommended operating pressure.

Answer:

1. 215 = Section width (in millimeters), 60 = Aspect ratio (sidewall height as % of section width), 16 = Wheel diameter (in inches)
2. B) Radial construction
3. B) 95 = load index and H = speed rating
4. Week 23 of 2019
5. False