how to Understanding the Code of Car Tires

Car and motorcycle tires have a 'language' itself to communicate with users. So as not to erroneously interpret, understand and sign codes are stamped on the tire.
To show the data specifications, brands, and types of tires, using a series of code numbers and letters. These codes are arranged in a universal formula and agreed by all tire manufacturers worldwide. For example CHAMPIRO HPY GT RADIAL 225/45 ZR17 94V. What are the meaning of those codes,The following explanation.GT RADIAL: The front is usually the name of the tire manufacturers.
CHAMPIRO HPY: A type of tire. CHAMPIRO HPY high-performance tires are manufactured PT Gajah Tunggal.
225: Three points in front (225) shows the width of the tire (tire width) in millimeters (mm) measured from the outermost point (outer) sidewall (wall) to the inner sidewall.45: The two numbers are always placed after the figure indicates the width of the tire sidewallalso called the aspect ratio or tire profile. This code indicates a high percentage of the tire sidewallto the width of the tire. In principle, the higher the aspect ratio number, the higher its sidewall. More precisely, consider this example. If the size of tires GT RADIAL CHAMPIRO HPY written 225/45 means the sidewall height was 45% of 225 mm or equal to 101.25 mm. These results are obtained by multiplying 225 mm with 45%.Z: The symbol indicates the tire speed rating that can be driven up to speeds above 240 km / h.R: The letter after the code of the tire width / aspect ratio shows the internal construction of the tire. Code "R" in the tires GT RADIAL CHAMPIRO HPY show it is a radial tire construction.17: This figure shows the diameter of the tire. Code number 17 means the tire diameter of 17 inches, 16 inches equals 16 and so on.94: This is the code of the tire load index or capacity in sustaining the load. Formula, the higher the load index, the higher the ability to receive the load. The magnitude of the load is known from the conversion table load index. Well, the tire is the number 94 means the tire can withstand loads up to 670 kg.Y: It's a symbol of speed rating that indicates the maximum speed limit that can be handled by the tire. The letter "Y" means the tire can be driven up to a maximum of 300 km / h.
source,dapurpacu.com