What does 12.00r20 tire mean?
2 Answers
12.00r20 tire means: 12.00 indicates the nominal width of the tire is 12 inches, and it is a tube-type tire; 20 indicates the nominal diameter of the rim is 20 inches. The maintenance methods for tires are as follows: 1. Tire pressure check must be performed monthly: Under-inflation and over-inflation will cause abnormal tire wear, shorten tire life, increase fuel consumption, and even increase the chance of a blowout. Tire experts recommend checking tire pressure once a month to ensure normal tire pressure. The tire pressure check must be performed when the tire is in a cold state. You can use a tire pressure gauge or a tire pressure monitoring system (TPMS) to check the tire pressure. The vehicle manual will list the standard tire pressure under various load conditions. At the same time, this parameter will also be listed on the label near the driver's door. The standard tire pressure is about 2.2~2.6 bar. Excessive tire pressure can easily increase tire wear and may cause a blowout, while too low pressure will increase fuel consumption and the bumpy feeling of the vehicle. Generally speaking, tire pressure can be slightly lower in summer and slightly higher in winter. 2. Always pay attention to the tire wear indicators: The tire wear indicators are located in the main drainage grooves of the tire and are rubber protrusions with a trapezoidal cross-section. When the tire tread wears to the level of the wear indicators, the tire must be replaced. In the rainy season, to prevent the vehicle from slipping on wet roads, the tire tread depth must be kept above 3mm. 3. Tires also have an expiration date: Tires are rubber products, so rubber aging will also occur. The shelf life of tire rubber is generally 4-5 years. After the shelf life, the tire rubber will accelerate aging, leading to a decline in tire performance. For example, "9MCR0810" is the tire production date code. Among them, the last 4 digits "0810" indicate that this tire was produced in the 8th week of the year "10".
I often drive for transportation, and when it comes to 12.00r20 tires, simply put, the tire width is 12 inches. The 'R' stands for radial construction design, which is more fuel-efficient and comfortable than the old bias-ply tires. The '20' refers to the 20-inch rim diameter. This type of tire is mainly used on large trucks, buses, or construction vehicles because of its strong load-bearing capacity and wear resistance. Ordinary cars simply can't fit such large tires. When changing tires, I remind everyone that the size must match the vehicle model. Don't be tempted by cheap, low-quality tires. For long-distance mountain driving, the tire pressure should be kept stable at the specified value; otherwise, it's prone to blowouts and accidents. Regular checks on tread depth and balance are crucial—don't wait until the grip weakens to regret it. I've learned this the hard way.
