2021 Buick Encore GX Tire Size

The original tire size for your 2021 Buick Encore GX is listed below. Tap on the box to view a color-coded explanation of the best Buick Encore GX tire size.

Trim Options:

EssencePreferredSTSelect

225/55R18 98H

Simplified Size:  225-55-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Buick Encore GX is 225/55R18 98H.  A color-coded explanation of the 2021 Buick Encore GX's tire size is shown below.

225

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

18

The tire size was designed to fit rims or wheels that are 18 inches in diameter.

98

This tire has a load index of 98, which means it's capable of carrying a load of 1650 pounds (750 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 123 millimeters.

R

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

RRadial
BBias Belt
DDiagonal
H

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.