Vehicles with 6x2 drivetrains
Learn what types of 6x2 drivetrain configurations will restrict your vehicle’s allowable weights and dimension limits.
Vehicle designation
In Ontario, commercial vehicles are designated as either safe, productive and infrastructure-friendly (SPIF) or non-compliant. SPIF vehicles have higher weight and dimension limits than non-compliant vehicles.
If your vehicle has a 6x2 drivetrain instead of the more common 6x4 drivetrain, it may be eligible to be considered SPIF or designated as non-compliant depending on the configuration.
| SPIF-compliant | Non-compliant |
|---|---|
| Tandem axles load equalize within 1000 kg, under all conditions of loading. | Tandem axles fail to load equalize within 1000 kg, under all conditions of loading. |
| Tandem axle set does not include a lift axle. | Tandem axle set includes a lift axle. |
| Tandem axles that are not equipped with load shifting (load biasing) traction-control technology. | Tandem axles equipped with load shifting (load biasing) traction-control technology. |
| There are no driver controls within the cab that allow for the altering of weight transmitted to the highway surface between the tandem axles or give the ability to lift its tires from contact with the highway surface. | There are driver controls within the cab that allow for the altering of weight transmitted to the highway surface between the tandem axles or give the ability to lift its tires from contact with the highway surface. |
Note: An axle capable of altering the weight transmitted to the highway is deemed a liftable axle and is considered non-compliant in a 6x2 drivetrain.
Learn more about Ontario’s vehicle weights and dimensions for SPIF and non-compliant vehicles.