Snow Chains

How chains work

Chains add steel cross links that bite into snow and ice, which improves acceleration, braking and cornering compared with the tire alone. They are intended for low-speed use and should come off when the road is clear, since driving on bare pavement quickly wears both chains and tires.

All the listings in this category are from SCC Security Chain, so the main differences are style and size.

Styles in this category

The listing names show the main options:

• Super Z and Z-Chain styles use a diamond or zigzag pattern for smooth, even traction and a more comfortable ride.
• Link chains, listed as Link Chain or Wide Base Link, have a traditional ladder or twisted link layout and are often chosen for heavier-duty use.
• CAM versus non-CAM describes the tensioning and mounting style on some SUV and light truck chains.
• Passenger, SUV/LT and commercial labels indicate the category and tire sizing range.

Sizing and clearance

Chains are sized by the tire's size marking, such as the width, aspect ratio and rim diameter on the sidewall. Match this to the chain's size chart, because a chain that is too loose will whip the vehicle and one that is too tight will not fit. Wide-base tires need chains made for them.

Clearance matters, too. Many modern cars and some SUVs have tight space around the tire and suspension, and some owner's manuals say chains must go only on specific wheels or cannot be used. Check yours. Lifted trucks usually have more room, but check the brake lines and steering parts.

Using chains safely

Practice installing them at home before you need them in the cold. Put them on the drive wheels as the manual says, drive slowly, usually under the limit on the package, and stop to retighten after a short distance. Avoid hard acceleration, locked wheels and spinning. Remove them when you reach bare pavement.

Chain requirements and permitted conditions vary by state and by road, so check local regulations. Confirm fitment for your exact tire size and vehicle, and check the manufacturer's specifications.

Store chains clean and dry after use, and inspect them for broken links or bent cross members before the next season. Carry gloves, a mat to kneel on and a flashlight, since installing chains in bad weather is much easier with them.

Care, storage and mistakes to avoid

Chains work best when they are tight, and most come with a tensioner or need a second check after a few hundred feet. Lay the chain flat and untangled before you drive onto it, and make sure the hooks and fasteners face outward so they cannot snag on brake lines or the body.

• Rinse salt and slush off the chain after use and let it dry fully before it goes back in its bag.
• Replace any chain with stretched or broken links, cross members worn thin or damaged tensioners.
• Do not use chains on tires they were not sized for, and do not use them with studded tires unless the instructions allow it.
• Carry a spare fastener or repair link if your chain type has one, since a loose end can damage fender liners and brake components quickly.