Product Details
A: Width (120/80-19)
Width of the tire, typically in millimeters, from sidewall across the tread to the opposite sidewall.
B: Aspect Ratio (120/80-19)
The height of the cross-sectional profile expressed as a % of the width of the tire
C: Rim Size (120/80-19)
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) ]
Front
| Metric | Alpha | Inch |
|---|---|---|
| 60/100 | 90/80 | 2.50/2.75 |
| 70/100 | 90/90 | 2.75/3.00 |
| 80/90 | MH | 2.50/2.75 |
| 80/100 | 100/80 | 3.00/3.25 |
| 90/90 | MJ90 | 2.75/3.00 |
| 100/90 | MM90 | 3.25/3.50 |
| 110/90 | MN90 | 3.75/4.00 |
| 120/80 | N/A | 4.25/4.50 |
| 120/90 | MR90 | 4.25/4.50 |
| 130/90 | MT90 | 5.00/5.10 |
Rear
| Metric | Alpha | Inch |
|---|---|---|
| 80/100 | 80/90 | 2.50/3.60 |
| 90/100 | 110/90 | 3.60/4.10 |
| 100/100 | 120/80 | 4.00/4.10 |
| 110/90 | MP85 | 4.50/4.75 |
| 110/100 | 130/80 | 4.00/4.50 |
| 120/90 | MR90 | 4.50/4.75 |
| 120/100 | 140/80 | 5.00/5.10 |
| 130/80 | N/A | 5.00/5.10 |
| 130/90 | MT90 | 5.00/5.10 |
| 140/80 | N/A | 5.50/6.00 |
| 140/90 | MU90 | 5.50/6.00 |
| 150/80 | MV85 | 6.00/6.25 |
| 150/90 | MV85 | 6.00/6.25 |
