(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
Here’s something that no ones added yet,
All the individual double wheels and front wheels on buses and trucks are actually identical and the outer double wheel is just flipped around, which is why the rear wheel looks concave and the front wheels look convex. This means that they can all be easily rotated and replaced, and you can theoretically pull a rear wheel off to replace a flat in the front and still have plenty of wheels left to drive on.
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