The number of wheels is variable according to the lorries size and the load it is able to carry. For instance, a small lorry, used for light loads, may have four wheels (as does a car), or dual-wheels on the rear axle and single wheels on the front. Larger, rigid lorries, and articulated lorries, especially, may have more than one set of rear dual-wheels.
Weight distribution over the surface of the roadway.
so that pressure will decrease and road will not sink
Being that it is a push mower, the advantage is not having to lower the handle so far to raise the front wheels when making a sharp turn-around.
Has to be towed from behind and the rear wheels OFF the ground or you will have to rebuild the transmission
Lorries and trucks carry heavy loads, and having eight tyres instead of four helps distribute the weight more evenly across the vehicle. This reduces the pressure on each tyre, minimizing the risk of blowouts and improving stability. Broader tyres also provide better traction and grip on the road, which is essential for safely maneuvering heavy loads. Additionally, the increased surface area helps prevent excessive wear and enhances durability under demanding conditions.
Depends on the type of trailer you are pulling but for the most yes 8 wheels on the trailer 8 drive tires on the rear of the truck 2 steer tires there you have your 18 wheeler If you re using Super singles ( the single wide tires), then just 4 tires.
a bus has 8 wheels
The main difference is that the 8 lug wheels can carry more weight.
8 lug wheels are better than 5 lug wheels because there is a wide selection of 8lug wheels
Each car has 8 wheels.
A bus has exactly 8 wheels everybody who say 4 is wrong