Search By

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 they have 695 revolutions per mile.
Generally they are approved to be mounted on 8.5-10" wide wheels.
Specs may vary by manufacturer. learn more
Close [X]
Visualizer
255/40R21 Tire Front
10.0"
29.0"
255/40R21 Tire Side
21 Inch Wheel
Circumference
91.2"
21"
4.0"
695 Revs/Mile
255/40R21
Diameter : 29.0"
Width : 10.0"
Wheel : 21" x 8.5-10"
Sidewall : 4.0"
Circum. : 91.2"
Revs/Mile : 695

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.
Alternate Sizes- OR -
Tire Size
Equivalent
Diameter

Select a Size to Compare Prices on Available Tires
Filter Tire Results [+]
Brand
  • Continental (2)
  • Dunlop (2)
  • Pirelli (5)
Tire Type
  • Summer (7)
  • Truck/SUV All Season (1)
  • Truck/SUV Winter (1)
Performance
  • Performance (1)
  • Sport (1)
  • Supreme Performance (7)
Warranty
  • 50K Miles (1)
Speed Rating
  • V (3)
  • Y (6)
Price
  • Above $300 (9)

Pirelli Tires
 Pirelli P Zero 255/40R21
P Zero
Summer | 102Y XL
Avg. $317.83
Supreme Performance
Pirelli Tires
 Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102Y XL
Avg. $326.63
Supreme Performance
Pirelli Tires
 Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102V XL
Avg. $335.88
Supreme Performance
Continental Tires
 Continental ContiSportContact 5P 255/40R21
ContiSportContact 5P
Summer | 102Y XL
Avg. $342.83
Supreme Performance
Pirelli Tires
 Pirelli Scorpion Winter 255/40R21
Scorpion Winter
Truck/SUV Winter | 102V XL
Avg. $344.91
Performance
Continental Tires
 Continental ContiSportContact 5 255/40R21
ContiSportContact 5
Summer | 102Y XL
Avg. $356.74
Supreme Performance
Pirelli Tires
 Pirelli Scorpion Zero All Season Plus 255/40R21
Scorpion Zero All Season Plus
Truck/SUV All Season | 102V XL
Avg. $391.38
Sport
50K Miles
Dunlop Tires
 Dunlop SP Sport Maxx GT 255/40R21
SP Sport Maxx GT
Summer | 102Y XL
Avg. $395.99
Supreme Performance
Dunlop Tires
 Dunlop Sport Maxx RT2 255/40R21
Sport Maxx RT2
Summer | 102Y XL
Avg. $469.99
Supreme Performance