If you have ever seen those plastic strips leading from the wheels of a semi-truck or tractor trailer and wondered what they were for, here's your answer.

The strips, which are simply placed under a tightened lug nut, are a signal the wheel is in motion. If the truck is on the road, why wouldn’t it be? Several reasons.

While driving behind a semi-truck, you've probably noticed a long bar going across the bottom, usually sporting red and white stripes.These are officially called underride guards, which became ...

If you have ever seen those plastic strips leading from the wheels of a semi-truck or tractor trailer and wondered what they were for, here's your answer.