Why do semi truck tyres often have spikes on the side?

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Snow chains or tyre chains are the spikes that are often found on the side of the front tyres of semi-trucks.

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These chains are used to help get a better grip on snowy or icy roads because the spikes can dig into the snow or ice.

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In places with bad winter weather, semi-trucks are often required to have tyre chains to make sure they can drive safely.

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Tire chains also make the car more stable and easier to control, which can be especially important when driving in bad weather.

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Local and state laws control how tyre chains can be used on semi-trucks.

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If you don't follow these laws, you could be fined or sent to jail.

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It's important for semi-truck drivers to know what the rules are in the areas they will be driving in about tyre chains.

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