What Do The Numbers Mean?
- The first number is the width of the tire in mm.
- The second number is the height of the sidewall given as a % of the width.
- The third number is the diameter of the wheel in inches.
Example: 120/80-19 or A/B-C [ The width(A) of the tire is 120mm. The sidewall height(B) is 80% of 120 or 96mm. And it fits a 19in wheel(C) ]