Given their enormous size, it's strange to think that semi-truck fleets actually care a great deal about aerodynamics. Whether it be the installation of angled fins on the side or the addition of ...
The first ten wheels belong to the tractor. It tows a semi trailer, which usually rides on two rear axles. Those axles also carry four tires each. Add those eight to the tractor’s ten, and you get 18 ...
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