Question: what is 2 axle vehicle?
Answer: A 2-axle vehicle is a vehicle with 2 axles. Each axle may have 1 wheel, 2 wheels, or a pair of "duallies". ... Typical examples would be many straight trucks with a pair of rear axles to carry the extra weight of the cargo, a Greyhound bus, some full-size RVs, and most tractor units for semitrailers.