SP74-R: This tyre is designed primarily for mud use on all vehicles in all positions, but shows substantial benefits over its competitors on front wheels of rear wheel drive vehicles on both loose and hard packed surfaces.
Also available are DUNLOP Rally Tubes, which are high quality tubes, made only from natural rubber with metal valve stem and fittings.
| Rim Diameter (inches) | Size | Section Width (mm) | Outer Diameter (mm) | Rim Widths (inches) |
| 14 | 185/65R14 | 182 | 610 | 5.0 – 6.5 |
| 15 | 195/65R15 | 212 | 648 | 5.5 – 7.0 |
| 15 | 205/65R15 | 210 | 647 | 5.5 – 7.5 |
SP74-R: This tyre is designed primarily for mud use on all vehicles in all positions, but shows substantial benefits over its competitors on front wheels of rear wheel drive vehicles on both loose and hard packed surfaces.
Also available are DUNLOP Rally Tubes, which are high quality tubes, made only from natural rubber with metal valve stem and fittings.
| Rim Diameter (inches) | Size | Section Width (mm) | Outer Diameter (mm) | Rim Widths (inches) |
| 14 | 185/65R14 | 182 | 610 | 5.0 – 6.5 |
| 15 | 195/65R15 | 212 | 648 | 5.5 – 7.0 |
| 15 | 205/65R15 | 210 | 647 | 5.5 – 7.5 |
