Apollo 205/50/R17

The "Apollo 205/50/R17" refers to a specific type of tire. Let me break it down:

• "Apollo" is the brand name of the tire manufacturer.
• "205" indicates the width of the tire in millimeters. In this case, it means the tire is 205 millimeters wide.
• "50" is the aspect ratio of the tire, which represents the height of the tire's sidewall as a percentage of the width. So, in this case, the height of the sidewall is 50% of the width of the tire.
• "R17" indicates the tire's construction type and the diameter of the wheel it's designed to fit. "R" stands for radial construction, which is the most common type of tire construction today. "17" indicates that the tire is designed to fit a wheel with a 17-inch diameter.