275/40R21 Tires

275/40R21 tires have a diameter of 29.7", a section width of 10.8", and a wheel diameter of 21". The circumference is 93.1" and they have 680 revolutions per mile.
Generally they are approved to be mounted on 9-11" wide wheels.
Specs may vary by manufacturer. learn more

Visualizer / Alternate Sizes

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Visualizer

10.8"

29.7"

93.1"

21"

4.3"

680 Revs/Mile

275/40R21

Diameter : 29.7"

Width : 10.8"

Wheel : 21" x 9-11"

Sidewall : 4.3"

Circum. : 93.1"

Revs/Mile : 680

Upsizing Wheels or Tires?

When searching for the perfect tire for your vehicle you need options. Click the "Alternate Sizes" button to see a list of similar tire sizes. You can then change the wheel size to see alternate sizes on a different diameter wheel.

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