Snow chains
Videos
Snow chains, or tire chains, are devices fitted to the tires of vehicles to provide increased traction when driving through snow and ice.
Link-type, diamond pattern snow chains on a front-wheel drive automobile
Snow chains at the front wheel of a grader at the Pikes Peak Highway
Automatic tire chains are permanently mounted near the drive tires and engage by turning a switch, then move into position to fling the pieces of chain under the tires automatically. Automatic chains were invented in 1941 in the United States and Sweden in 1977[citation needed].
Cable chains on a car tire, with a relatively simple and easy-to-secure design; this is a ladder-type or "radial" design
Tire tread
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The tread of a tire or track refers to the rubber on its circumference that makes contact with the road or the ground. As tires are used, the tread is worn off, limiting its effectiveness in providing
Snow chains
…a variety of patterns and strengths. Chains are usually sold in pairs and often must be purchased to match a particular tire size (tire diameter and tread width), although some designs can be adjusted to fit various sizes of tire. Driving with chains reduces fuel efficiency, and can reduce the allowable…
Tire tread
Studded mountain bike tires for icy conditions.
The tread of a construction machine's tracks.