In P235/70R17, what does the 235 denote?

In P235/70R17, what does the 235 denote?

• A. The Section Width in mm
• B. The Tire Construction Type
• C. The Wheel Diameter in inches
• D. The Aspect Ratio of the tire

Answer: (A)

The number 235 in a tire size like P235/70R17 represents the tire’s width. Specifically, it’s the section width measured in millimeters from sidewall to sidewall when the tire is mounted and inflated. This width is a key factor in how the tire contacts the road and influences grip and curb protection. The sequence also includes the aspect ratio (70), which is the height of the sidewall as a percentage of the width, the construction type (R for radial), and the wheel diameter (17 inches). So, 235 is not the construction, not the wheel size, and not the sidewall height—that latter value is the 70.

The number 235 in a tire size like P235/70R17 represents the tire’s width. Specifically, it’s the section width measured in millimeters from sidewall to sidewall when the tire is mounted and inflated. This width is a key factor in how the tire contacts the road and influences grip and curb protection. The sequence also includes the aspect ratio (70), which is the height of the sidewall as a percentage of the width, the construction type (R for radial), and the wheel diameter (17 inches). So, 235 is not the construction, not the wheel size, and not the sidewall height—that latter value is the 70.