Production batch number: a set of numbers and letters indicating the year, month and quantity of the tire. For example, "98N08B5820" means the 5820th tire produced by Group B in August 1998. The production batch number is used to identify the tire's condition and storage time.
Tires usually consist of three parts: outer tire, inner tube and pad. There are also those that do not require inner tubes. The inner layer of the carcass has a rubber layer with good air tightness and requires a special rim. The structure of tires in various countries around the world is developing in the direction of tubeless, radial structure, flat (the ratio of tire section height to width is small) and lightweight.
Extended information:
Other marks: such as product grade, production license number and other ancillary marks. Can be used as reference and information when making selections.
Tire markings are generally relatively standardized. Once they are clearly identified, you can purchase and use them with confidence.
The following is a common way to express tire specifications:
Example: 185/70R14c 86H
185: Tread width (mm)
70: Aspect ratio (tire height ÷ tire width) (70 refers to 70)
R: Radial structure
14: Steel rim diameter (inches)
c: Indicates a weighted tire
86: Load index (indicates the corresponding maximum load is 530 kg)
H: Speed ??code (indicates the maximum safe speed is 210 km/h)
Speed ??code maximum speed (km/h)
C: 60 D: 65 E: 70 F: 80 G: 90 J: 100 K: 110 L: 120 M: 130 N: 140 P: 150 Q: 160 R: 170 S: 180 T: 190 U: 200 H: 210 V: 240 W: 270 Y: 300
Load code limit
80: 450kg 81: 462kg 82: 475kg 83: 487kg 84: 500kg 85: 515kg 86: 530kg 87: 545kg 88: 560kg 89: 580kg 90: 600kg
Reference:
Tires-Baidu Encyclopedia