However, directional tires can only be rotated front-to-back — they can't switch sides. Asymmetrical tires feature a distinct pattern on the inner and outer halves of the tire tread ribs.

There are several types of tires on the market and each serve a different purpose. Some tires even must roll in the same direction. Here's as to why.

You have probably noticed that different tires have different tread patterns. Here are the reasons for the various patterns and why they have grooves.