The tractor wheelbase can be up to 7.2 m in a tractor-semitrailer configuration, provided the wheelbase of the semitrailer is reduced in accordance with the following table:
| Tractor wheelbase | Maximum semitrailer wheelbase |
|---|
| 6.2 m or less | 12.50 m |
| > 6.2 m to 6.3 m | ≤ 12.47 m |
| > 6.3 m to 6.4 m | ≤ 12.40 m |
| > 6.4 m to 6.5 m | ≤ 12.33 m |
| > 6.5 m to 6.6 m | ≤ 12.27 m |
| > 6.6 m to 6.7 m | ≤ 12.20 m |
| > 6.7 m to 6.8 m | ≤ 12.13 m |
| > 6.8 m to 6.9 m | ≤ 12.07 m |
| > 6.9 m to 7.0 m | ≤ 12.00 m |
| > 7.0 m to 7.1 m | ≤ 11.93 m |
| > 7.1 m to 7.2 m | ≤ 11.87 m |