1. Normal tires will have a positive and negative point. Generally, there will be Outside logo outside the tire, which is the most common outer identifier. If the tire load will put inside to the outside.
2, I believe that most friends will encounter tires that do not have a positive anti-identity. Usually, in this case, the professionals will resolve the tires in numbers, usually show outside the tire production, such as tires. There is LDQUO; 3520rdquo; meaning the tire produced in 2020, usually see LDQUO; 3520RDQUO; is also an identification of the outer side of the tire.
3, common snow tires, all of the tires have the date of production, and there is no Outside identifier, in which case, according to the ldquo above the tire; arrow RDQUO; logo to distinguish the positive butt, The mark of the arrow means: the rolling direction of the tire when the vehicle is moving forward.