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 ...

Drivers will need to purchase new tires every few years to avoid flats, blowouts and achieve peak performance. There are tricks and methods to tell where your tire is in its lifecycle and if it needs ...