2002 Porsche Boxster Tire Size
Choose the correct rim size for your 2002 Porsche Boxster. Then pick the correct stock tire size from the left to get a detailed explanation of the tire code. If you don't know the correct stock tire size, check the inside of your driver side door or owner's manual.
Front Tire 205/55ZR16 


205 
This number indicates that your tire has a width of 205 millimeters. 

55 
This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 112.75 millimeters. 

Z 
This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (over 240 km/h). tire's speed class is less specific than the speed rating. 

R 
This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.


16 
The tire size was designed to fit rims or wheels that are 16 inches in diameter. 
Rear Tire 225/50ZR16 


225 
This number indicates that your tire has a width of 225 millimeters. 

50 
This number means that your tire has an aspect ratio of 50%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width. In this case, the sidewall height works out to be 112.50 millimeters. 

Z 
This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (over 240 km/h). tire's speed class is less specific than the speed rating. 

R 
This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.


16 
The tire size was designed to fit rims or wheels that are 16 inches in diameter. 