255/45R21 Tires
255/45R21 tires have a diameter of 30.0", a section width of 10.0", and a wheel diameter of 21". The circumference is 94.3" and they have 672 revolutions per mile.
Generally they are approved to be mounted on 8-9.5" wide wheels.
Specs may vary by manufacturer. learn more
Generally they are approved to be mounted on 8-9.5" wide wheels.
Specs may vary by manufacturer. learn more
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10.0"
30.0"
94.3"
21"
4.5"
672 Revs/Mile
255/45R21
Diameter : 30.0"
Width : 10.0"
Wheel : 21" x 8-9.5"
Sidewall : 4.5"
Circum. : 94.3"
Revs/Mile : 672
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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