(Eli5) Why do Buses & Trucks use 2 skinny wheels put together on each side of the axle? Instead of just using one fat wheel?
In: Engineering
To add; when a bus or truck turns two wheels aren’t damaged.
A small circle has less distance to go than a large circle around the same point. This means on tyres one edge has to travel further than the other while rotating the same amount; the solution is one side drags.
On thin tyres the dragging is minimal, but on a large tyre the edges will get dragged every time they turn a corner meaning it wears out faster and stops the vehicle from turning well
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