|
MEDIUM TRUCK APPROVED RIM WIDTH
and MINIMUN DUAL SPACING |
| Measuring rim width shown in boldface type. |
| TIRE SIZE |
APPROVED RIM WIDTH |
MIN DUAL SPACING |
| TUBE TYPE |
| 8.25-20/8.25R20 |
7.0, 6.5, 6.0 |
10.60 |
| 9.00-20/9.00R20 |
7.5, 7.50VM, 7.0, 6.5 |
11.60 |
| 10.00-20/10.00R20 |
7.5, 7.50VM, 7.0, 6.5 |
12.50 |
| 11.00-20/11.00R20 |
8.5, 8.50VM, 8.0, 7.5 |
13.20 |
| 11.00R22 |
8.5, 8.0, 7.5 |
13.20 |
| 11.00R24 |
8.5, 8.50VM, 8.0, 7.5 |
13.20 |
| 12.00R20 |
9.0, 8.5, 8.50VM, 8.0 |
14.10 |
| 12.00R24 |
9.0, 8.5, 8.50VM, 8.0 |
14.10 |
| TUBELESS |
| 10R17.5 |
7.50HC, 6.75HC |
11.40 |
| 8R19.5 |
5.25, 6.00, 6.00RW, 6.75, 6.75RW |
9.10 |
| 9R22.5 |
6.00, 6.75, 7.50 |
10.30 |
| 10-22.5/10R22.5 |
6.75, 7.50 |
11.40 |
| 11-22.5/11R22.5 |
7.50, 8.25 |
12.50 |
| 12R22.5 |
8.25, 9.00 |
13.50 |
| 225/70R19.5 |
6.00, 6.00RW, 6.75, 6.75RW |
10.00 |
| 245/70R19.5* |
6.75, 6.75RW*, 7.50, 7.50RW* |
10.98 |
| 14-17.5 |
10.5 |
NA |
| 15-19.5 |
11.75, 12.25 |
NA |
| 15-22.5 |
11.75, 12.25 |
NA |
| 18-19.5 |
13.00, 14.00 |
NA |
| 18-22.5 |
13.00, 14.00 |
NA |
| 255/70R22.5 |
7.50, 8.25 |
11.30 |
| 275/70R22.5 |
7.50, 8.25, 9.00 |
12.24 |
| 295/75R22.5 |
8.25, 9.00 |
13.19 |
| 315/80R22.5 |
8.25, 9.00, 9.75 |
13.82 |
| 385/65R22.5 |
11.75, 12.25 |
NA |
| 425/65R22.5 |
11.75, 12.25, 13.00 |
NA |
| 285/75R24.5 |
8.25 |
12.52 |
|
- Minimum dual spacing is listed for the measuring rim width.
- New tire section widths and overall widths will change 0.10-inches (2.5 mm) for each 0.25-inch change in rim width. Adjust minimum dual spacing accordingly.
- Alternate rims should be used only when the measuring rim cannot be used.
* 6.75-inch rim width for load range “F” (12-ply rated) and lower, 7.50-inch rim width for load range “G” (14-ply rated) and higher. |
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