2018 Chevy Spark Tire Size

The original tire size for your 2018 Chevy Spark is listed below. Tap on the box to view a color-coded explanation of the best Chevy Spark tire size.

Trim Options:


185/55R15 82H

Simplified Size:  185-55-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Chevy Spark is 185/55R15 82H.  A color-coded explanation of the 2018 Chevy Spark's tire size is shown below.


This number indicates that your tire has a width of 185 millimeters.


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 101 millimeters.


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

BBias Belt

The tire size was designed to fit rims or wheels that are 15 inches in diameter.


This tire has a load index of 82, which means it's capable of carrying a load of 1045 pounds (475 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.


This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.