What are the yellow strips on truck tires?

For general use, they come in yellow, red, orange and light green. The plastic on these Zafety Lug Locks holds the nuts and stops them from moving. They only work on wheels with even numbers of wheel nuts.

Why do semi trucks have spikes on their wheels?

The spikes are designed to protect the lug nut from normal wear-and-tear and weathering damage, such as rust from heavy rain. The spike design helps flick moisture away while the wheel is spinning, too.

What are those things on the back of semi trucks?

The panels under the body of the truck are called aerodynamic panel skirts, side panels, or side skirts. The panels that hang off the back are often called rear tail fairings, trailer tails, or sometimes boat tails. Whatever you call them, their purpose is to reduce drag and save fuel.

Why do trucks have flaps behind their wheels?

Mud flaps, mud guards or splash guards are generally large, rectangular sheets of rubber suspended behind the tires of buses, trucks and other large utility vehicles. These flaps protect other vehicles and pedestrians from mud, water and other flying debris that can be kicked up into the air by rotating tires.

Why are there colored lines on new tires?

It was developed to help manufacturers and distributors to avoid costly mistakes. Basically, such coloured stripes are the alphanumeric codes that precisely indicate various characteristics of a given tyre model, such as tyre size, type and other parameters.

What does it mean when your tires are in the yellow?

Weight Method (Yellow Mark) When performing weight match-mounting, the yellow mark on the tire, indicating the point of lightest weight, should be aligned with the valve stem on the wheel assembly, which represents the heaviest weight point of the wheel assembly.

What’s the bar on the back of a semi called?

Those steel bars hanging from the truck’s platform bed are known as a “rear underride guards” or “rear impact guards.” They are designed to prevent vehicles from sliding underneath a trailer during a rear-end collision.

Why do trucks have to stop at weigh stations?

Truck weigh stations are important because weighing trucks prevents overweight trucks from going onto highways that cannot handle the heavy load. Trucks that weigh over the regulated weight limit can cause irreparable damage to roads and bridges. Many states collect taxes on transported goods based on weight.

What does the yellow and red indicator mean on a wheel?

This wheel shows one red indicator in front of a yellow indicator which means all the nuts need to be checked. The yellow indicator on the bottom left is showing the nut might have moved a little, perhaps as it hasn’t been retorqued properly.

Why is there a red light on the front of wheels?

It also is a way to tell if there’s a problem with a sticking brake or a wheel hub that is dry as this will cause excessive heat in the wheel which will discolour and warp or melt the plastic. A red indicator (or an indicator of a different colour) is used if a wheel has been changed but the nuts have not been retorqued.

Why do streaks run out from my wheel nuts?

Streaks running out from the nut are an indication your wheel nuts have been loose a while! There is a cheap, effective way of telling when a wheel nut has come loose, though, and it’s done with plastic indicators that are fitted over the wheel nuts. For general use, they come in yellow, red, orange and light green.

What are the different colors of Lug locks?

For general use, they come in yellow, red, orange and light green. The plastic on these Zafety Lug Locks holds the nuts and stops them from moving. They only work on wheels with even numbers of wheel nuts. Plastic arrow indicators can be used on wheels with any number of nuts.