215 70r16意思

"215 70R16" is a tire size designation, indicating the tire's width, aspect ratio, construction method, and wheel diameter. Here's what each part of the designation means:

  1. 215: This is the tire's width in millimeters. In this case, the tire is 215 millimeters wide.

  2. 70: This is the aspect ratio, which is the percentage of the tire's width that the tire's sidewall height is. In this case, the sidewall height is 70% of 215 millimeters. So, the sidewall height is 150.5 millimeters (215 mm * 0.7).

  3. R: This letter stands for the construction method of the tire. In this case, the tire is a radial tire, which means the layers run radially across the tire. This is the most common construction method for tires today.

  4. 16: This is the wheel diameter, which is the size of the wheel the tire is designed to fit. In this case, the tire is designed to fit a wheel that is 16 inches in diameter.

So, a tire size of 215/70R16 means a tire that is 215 millimeters wide, with a sidewall height of 70% of that width, and is designed to fit a 16-inch wheel.