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255/30R21 Tires

255/30R21 tires have a diameter of 27.0", a section width of 10.0", and a wheel diameter of 21". The circumference is 84.9" and they have 747 revolutions per mile.
Generally they are approved to be mounted on 8.5-9.5" wide wheels.
Specs may vary by manufacturer. learn more
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255/30R21 Tire Front
255/30R21 Tire Side
21 Inch Wheel
747 Revs/Mile
Diameter : 27.0"
Width : 10.0"
Wheel : 21" x 8.5-9.5"
Sidewall : 3.0"
Circum. : 84.9"
Revs/Mile : 747

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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Tire Size

Select a Size to Compare Prices on Available Tires

Pirelli Tires
 Pirelli P Zero Nero GT 255/30R21
P Zero Nero GT
Summer | 93Y XL
Avg. $120.00
 Supreme Performance 
Falken Tires
 Falken Azenis FK510 255/30R21
Azenis FK510
Summer | 93Y XL
Avg. $206.00
 Ultra High Performance 
Pirelli Tires
 Pirelli P Zero 255/30R21
P Zero
Summer | 93Y XL
Avg. $365.00
 Supreme Performance 
Michelin Tires
 Michelin Pilot Sport 4S 255/30R21
Pilot Sport 4S
Summer | 93Y XL
Avg. $391.00
 Supreme Performance 
30K Miles