What wheel size does a 10R20 tire fit?

A 10R20 fits a wheel of 20 inches in diameter. The wheel also has to be within the rim width range the manufacturer publishes for this size, which is printed in the tire's spec sheet.

What do the numbers in 10R20 mean?

10 is the section width in inches, R marks the construction (radial), and 20 is the wheel diameter in inches. This size states no aspect ratio, so its overall height is not derivable from the code — check the manufacturer's spec sheet for the fitted height.

Size Dimensions & Specs

Tires Size 10R20

Dimensions, specs, and every size 10R20 tire currently in stock

Section Width

10"

stated in inches

Wheel Diameter

20"

508.0 mm

10R20 Specifications

Read directly from the size code. Load index, speed rating, and rim width range vary by model.

Specification	Imperial	Metric
Section width	10 in	—
Wheel / rim diameter	20 in	508.0 mm
Construction	Radial	—

What does 10R20 mean?

Reading the code on your sidewall

Section width

10 in

The distance from sidewall to sidewall across the tire's widest point.

Construction (R)

Radial

The body plies run across the tire at right angles to the direction of travel.

Wheel diameter

20 in

Fits a wheel measuring 20 inches across.

10R20 Questions & Answers

Dimensions and fitment guidelines for size 10R20

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