Buy tires have learned

Farmer friends, let's buy two pairs of shoes, but also "shop around" carefully selected it! Not to mention the price is about 20% of the vehicle's price of the tires. Buying tires is very knowledgeable. Now please understand that people teach you how to buy tires correctly. First, choose the right tire model China's current tires are mostly represented by the nominal diameter of the tire diameter, rim diameter, and tire section width. The tire cord material includes nylon (code N), rayon (code R), steel wire (code G), and cotton cord (code M). When selecting a tire, on the one hand, the specifications of the tire should be in accordance with its own model; on the other hand, the number of tire layers and the type of cord material should be noted. Generally, the more the number of tire layers is, the worse the heat dissipation is. It should be selected according to the model. The same axle around the tire should be the same level of the same material the same manufacturer of the product, so as not to tire uneven wear. Second, we must look carefully at the tire logo purchase should carefully check the tire surface with or without specifications code, factory name or site, trademarks and grades, production number and tire frame material, structure code, standard rims and inspection seals, etc., if the above content identification Clear, indicating that it is a regular manufacturer. But it should also be noted that the inspection is a new tire (clearly clear opening line) or retreaded tires, repair tires 3 to check the quality of tires carefully check the tire surface with or without bubbles, tumors, tire surface and inner wall deformation or sharp scratches Whether there is delamination in each part of the tire, whether there is heavy skin or crack in the sidewall, and whether the pattern is misplaced; press the inner and outer walls of the tire along the circumference of the tire to check whether the sidewall cords are even and there are wireless heads and wires exposed. Whether the rubber has obvious bumps; use a hand pull to open the box line rubber nails to see if it is flexible and not easy to tear; check the inner tube at the valve core for deformation, valve threads with or without sliding deduction.