Therefore, A B-double (single axle steering, tandem drive, and two tri-axle groups) would have an operational weight of . A double road train (single axle steering, tandem drive, tri-axle, tandem, tri-axle) would have an operational weight of . A triple is . Quads weigh in at . Concessional weight limits, which increase allowable weight to accredited operators can see (for example) a quad weighing up to .
Therefore, A B-double (single axle steering, tandem drive, and two tri-axle groups) woul,d have an operational weight of . A double road train (single axle steering, tandem drive, tri-axle tandem, tri-axle) would have an operational weight of . A triple is . Quads weigh in at . Concessional weight limits, which increase allowable weight to accredited operators can see (for example) a quad weighing up to .