What wheel size does a 12R16.5 tire fit?

A 12R16.5 fits a wheel of 16.5 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 12R16.5 mean?

12 is the section width in inches, R marks the construction (radial), and 16.5 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 12R16.5

Dimensions, specs, and every size 12R16.5 tire currently in stock

Section Width

12"

stated in inches

Wheel Diameter

16.5"

419.1 mm

12R16.5 Specifications

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

Specification	Imperial	Metric
Section width	12 in	—
Wheel / rim diameter	16.5 in	419.1 mm
Construction	Radial	—

What does 12R16.5 mean?

Reading the code on your sidewall

Section width

12 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

16.5 in

Fits a wheel measuring 16.5 inches across.

12R16.5 Questions & Answers

Dimensions and fitment guidelines for size 12R16.5

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