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Tire Sizes
|
There are basically three different systems of tire description:
Inch system (You are probably familiar with it as tire size readings
like 5.00 - 16 or 4.50/S/18), the Alphanumeric System (for example:
MT 90-16) and the Metric System (for example: 130/90 - 16). The
last numbers are to describe the rim size. Before that number
there is generally a dash or one of the letters S, H or V. This
is key to speed range: (S) tires are up to 112 mph, (H) tires
are admissible for speeds up to 130 mph, and (V) tires for 150
mph and up. Alphanumeric System and Series 80 are describing low-profile
tires, which means the height is small than the width and the
proportions to the width is fixed. Only in the Standard Inch-System
can we find tires with equal width and height which is then a
"square-profile". |
| Metric |
Alphanumeric |
Inch-System
(Series 90) |
Inch-System
(Series 82) |
|
| 80/90 |
---- |
2.75 |
---- |
|
| 90/90 |
MH
90 |
3.00/3.25 |
---- |
|
| 100/90 |
MJ
90 |
3.25 |
3.60 |
|
| 110/90 |
ML
90 |
3.50 |
4.10 |
|
| 120/90 |
MN90/MP90/MR
90 |
4.00/4.25 |
4.25/82/4.40 |
|
| 130/90 |
MT
90 |
5.0 |
5.10 |
|
| 140/90 |
MU
90 |
---- |
---- |
Tire Charts
| Size |
Rim |
Overall
Width |
Overall
Diameter |
|
| 120/80V16 |
2.75 |
4.7 |
23.8 |
|
| 130/90H16 |
3.00 |
5.00 |
25.4 |
|
| 130/90V16 |
3.00 |
5.2 |
25.0 |
|
| 500S16 |
3.00 |
5.2 |
26.4 |
|
| MT90H16 |
3.00 |
5.3 |
25.3 |
|
| 130/90H16 |
3.00 |
5.4 |
25.6 |
|
| 140/90H16 |
3.50 |
5.8 |
25.6 |
|
| 140/80VB16 |
3.50 |
5.9 |
24.8 |
|
| 140/90H16 |
3.50 |
6.0 |
25.8 |
|
| 150/80V16 |
3.50 |
6.2 |
25.4 |
|
| 160/80H16 |
4.00 |
6.4 |
26.1 |
|
| 160/80H16 |
4.00 |
6.8 |
26.1 |
|
| 200/60VB16 |
5.50 |
7.9 |
25.9 |
|
| 120/80V18 |
2.75 |
4.8 |
25.9 |
|
| 120/90V18 |
2.75 |
4.8 |
26.4 |
|
| 120/90H16 |
2.75 |
4.9 |
26.3 |
|
| 130/80V18 |
3.00 |
5.2 |
26.3 |
|
| 130/70VB18 |
3.50 |
5.4 |
25.4 |
|
| 150/70VB18 |
4.00 |
5.9 |
26.2 |
|
| 140/70V18 |
4.00 |
6.1 |
25.7 |
|
| 170/60VB18 |
4.50 |
6.9 |
26.0 |
|
| 180/55VB18 |
5.50 |
7.0 |
26.3 |
|
| 230/50
X 15 |
7.00
to 8.00 |
9.5 |
25.3 |
|
Note: Measurements are based on the given rim widths. A rough
rule of thumb: Each additional 1/2-inch of rim width will be approximately
1/4-inch more in each tire width. |
Motorcycle Street Tire Size Conversion Charts
| Metric |
Alpha |
Inch |
|
| 80/90 |
MH90 |
2.50/2.75 |
|
| 90/90 |
MJ90 |
2.75/3.00 |
|
| 100/90 |
MM90 |
3.25/3.50 |
|
| 110/90 |
MN90 |
3.75/4.00 |
|
| 120/80 |
---- |
4.25/4.50 |
|
| 120/90 |
MR90 |
4.25/4.50 |
|
| 130/90 |
MT90 |
5.00/5.10 |
| Metric |
Alpha |
Inch |
|
| 110/90 |
MP85 |
4.50/4.75 |
|
| 120/90 |
MR90 |
4.50/4.75 |
|
| 130/80 |
---- |
5.00/5.10 |
|
| 130/90 |
MT90 |
5.00/5.10 |
|
| 140/80 |
---- |
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 |
|
| 160/80 |
---- |
6.80/7.00 |
|
| 180/55 |
---- |
7.00/7.25 |
|
| 200/60 |
---- |
7.90/8.00 |
|
| 230/50 |
---- |
9.50 |
|
