Semi-trucks are some of the longest, biggest, and heaviest vehicles on the roads. Semi-trucks — and here's what "semi" means on a semi-truck — are wide, averaging 8.5 feet, and can reach 70 to 80 feet ...

To plug or not to plug is a thought that comes up whenever there's a puncture. The truth is, plugging a tire can be an easier, more convenient way to patch a flat, but it goes against Department of ...

Semi-trucks are surprisingly loaded with technology, from cylinder deactivation systems that shutdown areas of the engine to save fuel to safety systems that announce when there are pedestrians, other ...

Time-saving tools like this multi-line inflation system can inflate several tires at a time to the same pressure. Imagine breaking down a hundred tires a day by hand. Big tire shops used to do that, ...

This story appears in the Jan. 5 print edition of Transport Topics. Commercial tire work is a tough and potentially hazardous job, but the combination of effective training, protective equipment, ...