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255/40R21 Tires

255/40R21 tires have a diameter of 29.0", a section width of 10.0", and a wheel diameter of 21". The circumference is 91.2" and the revolutions per mile are 716.
Specs may vary by manufacturer. learn more
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255/40R21 Tire Front
10.0"
29.0"
255/40R21 Tire Side
21 Inch Wheel
Circumference
91.2"
21"
4.0"
716 Revs/Mile
255/40R21
Diameter : 29.0"
Width : 10.0"
Wheel : 21"
Sidewall : 4.0"
Circum. : 91.2"
Revs/Mile : 716

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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Brand
  • Continental (2)
  • Dunlop (1)
  • Pirelli (3)
Tire Type
  • Summer (5)
  • Truck/SUV Winter (1)
Performance
  • Performance (1)
  • Supreme Performance (5)
Speed Rating
  • V (1)
  • Y (5)
Run Flat
  • RunFlat (1)
Price
  • $250-$300 (1)
  • Above $300 (5)

Pirelli Tires
Pirelli P Zero 255/40R21
P Zero
Summer | 102Y XL
Avg. $294.51
 Supreme Performance 
$70 REBATE
Continental Tires
Continental ContiSportContact 5P 255/40R21
ContiSportContact 5P
Summer | 102Y XL
Avg. $318.86
 Supreme Performance 
Pirelli Tires
Pirelli Scorpion Winter 255/40R21
Scorpion Winter
Truck/SUV Winter | 102V XL
Avg. $327.55
 Performance 
$70 REBATE
Continental Tires
Continental ContiSportContact 5 255/40R21
ContiSportContact 5
Summer | 102Y XL (RunFlat)
Avg. $349.42
 Supreme Performance 
Pirelli Tires
Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102Y XL
Avg. $398.86
 Supreme Performance 
Dunlop Tires
Dunlop SP Sport Maxx GT 255/40R21
SP Sport Maxx GT
Summer | 102Y XL
Avg. $427.93
 Supreme Performance