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What Does Class S Mean For Snow Tire Chains  

Question:

WHAT DOES THE CLASS S STAND FOR

1

Helpful Expert Reply:

Some newer cars, vans and small trucks, especially those with large, aftermarket tires, may require the use of Class S chains. Class S tire chains are designed for use on vehicles with restricted wheel well clearance. I have attached a photo that shows the areas where clearance for Class S tire chains is needed. For the A dimension a minimum of 1.46inches (37 mm) between the top of the tire tread and the wheel well is needed. For the B dimension, at least 0.59 inches (15 mm) between the tire's sidewall and the vehicle itself is required.

I have attached a helpful article that explains the differences in tire chains and a comparison chart for tire chains. I have also included a link to an article that is a snow tire chain review. This explains snow tire chains and also has a list of the states and their laws regarding snow tire chain use.

You will want to check with your owners manual to see what is recommended when considering snow tire chains.

expert reply by:
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Jeffrey L
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Sue L. profile picture

Sue L.

12/14/2024

Your write-up says you have attached an article, but the article is not attached. Can you email it to me? Thank you.

KevinC profile picture
Etrailer Expert

Kevin C.

12/14/2024

@SueL I've attach a link right below this comment that leads to all of our tire chain help articles. If you need any help picking out the right chains for your vehicle let me know the year/make/model and tire size and I'd be happy to help.
Serhiy profile picture

Serhiy

12/31/2024

Thanks for clear explanation.

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