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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 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
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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"
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?

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Goodyear Tires
Goodyear Eagle F1 Asymmetric 3 SUV 255/40R21
Eagle F1 Asymmetric 3 SUV
Truck/SUV Summer | 102Y XL
Avg. $169.00
 Sport  
Nexen Tires
Nexen N5000 Platinum 255/40R21
N5000 Platinum
All Season | 102W XL
Avg. $191.00
 Grand Touring  
55K Miles
Toyo Tires
Toyo Proxes Sport 255/40R21
Proxes Sport
Summer | 102Y XL
Avg. $197.00
 Supreme Performance  
25K Miles
Dunlop Tires
Dunlop SP Sport Maxx GT 255/40R21
SP Sport Maxx GT
Summer | 102Y XL
Avg. $205.00
 Supreme Performance  
Falken Tires
Falken Azenis FK460 A/S 255/40R21
Azenis FK460 A/S
All Season | 102Y XL
Avg. $302.67
 Ultra High Performance  
50K Miles
Yokohama Tires
Yokohama ADVAN Sport V107 255/40R21
ADVAN Sport V107
Summer | 102Y XL
Avg. $321.50
 Supreme Performance  
Michelin Tires
Michelin Primacy Tour A/S 255/40R21
Primacy Tour A/S
All Season | 102W XL
Avg. $322.25
 Grand Touring  
45K Miles
Michelin Tires
Michelin CrossClimate 2 255/40R21
CrossClimate 2
All Season | 102V XL
Avg. $339.00
 Grand Touring  
60K Miles
Toyo Tires
Toyo Celsius Sport 255/40R21
Celsius Sport
All Season | 102Y XL
Avg. $340.33
 Grand Touring  
40K Miles
Continental Tires
Continental CrossContact RX 255/40R21
CrossContact RX
Truck/SUV All Season | 102W XL
Avg. $344.00
 Touring  
Hankook Tires
Hankook iON evo AS SUV 255/40R21
iON evo AS SUV
Truck/SUV All Season | 102Y XL
Avg. $347.00
 Touring  
50K Miles
$110 REBATE
Continental Tires
Continental SportContact 6 255/40R21
SportContact 6
Summer | 102Y XL
Avg. $353.50
 Supreme Performance  
Continental Tires
Continental CrossContact RX 255/40R21
CrossContact RX
Truck/SUV All Season | 102V XL
Avg. $355.50
 Touring  
$110 REBATE
Continental Tires
Continental ContiSportContact 5P 255/40R21
ContiSportContact 5P
Summer | 102Y XL
Avg. $361.00
 Supreme Performance  
Bridgestone Tires
Bridgestone Alenza Sport A/S 255/40R21
Alenza Sport A/S
Truck/SUV All Season | 102H XL
Avg. $370.00
 Touring  
$110 REBATE
Continental Tires
Continental ContiSportContact 5 255/40R21
ContiSportContact 5
Summer | 102Y XL
Avg. $373.00
 Supreme Performance  
Pirelli Tires
Pirelli Scorpion Winter 2 255/40R21
Scorpion Winter 2
Truck/SUV Winter | 102V XL
Avg. $400.00
 Performance  
Pirelli Tires
Pirelli P Zero Winter 255/40R21
P Zero Winter
Winter | 102H XL
Avg. $410.00
 Performance  
Dunlop Tires
Dunlop Sport Maxx RT2 255/40R21
Sport Maxx RT2
Summer | 102Y XL
Avg. $427.00
 Supreme Performance  
Bridgestone Tires
Bridgestone Potenza Sport 255/40R21
Potenza Sport
Summer | 102Y XL
Avg. $429.00
 Supreme Performance  
Michelin Tires
Michelin Pilot Sport All Season 4 255/40R21
Pilot Sport All Season 4
All Season | 102Y XL
Avg. $433.75
 Ultra High Performance  
45K Miles
Continental Tires
Continental EcoContact 6Q 255/40R21
EcoContact 6Q
Summer | 102Y XL
Avg. $453.00
 Grand Touring  
Pirelli Tires
Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102V XL
Avg. $461.00
 Supreme Performance  
Pirelli Tires
Pirelli P Zero 255/40R21
P Zero
Summer | 102Y XL
Avg. $462.60
 Supreme Performance  
Pirelli Tires
Pirelli Scorpion Winter 255/40R21
Scorpion Winter
Truck/SUV Winter | 102V XL
Avg. $463.00
 Performance  
Pirelli Tires
Pirelli Scorpion Zero All Season Plus 255/40R21
Scorpion Zero All Season Plus
Truck/SUV All Season | 102V XL
Avg. $468.00
 Sport  
50K Miles
Pirelli Tires
Pirelli Scorpion Zero All Season 255/40R21
Scorpion Zero All Season
Truck/SUV All Season | 102V XL
Avg. $468.00
 Sport  
Michelin Tires
Michelin Pilot Sport 4 SUV 255/40R21
Pilot Sport 4 SUV
Truck/SUV Summer | 102Y XL
Avg. $483.00
 Sport  
20K Miles
Michelin Tires
Michelin Pilot Sport 4S 255/40R21
Pilot Sport 4S
Summer | 105Y HL
Avg. $487.00
 Supreme Performance  
30K Miles
Pirelli Tires
Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102W XL
Avg. $490.75
 Supreme Performance  
Pirelli Tires
Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102Y XL
Avg. $493.67
 Supreme Performance  
Goodyear Tires
Goodyear Eagle F1 Asymmetric 5 255/40R21
Eagle F1 Asymmetric 5
Summer | 102Y XL
Avg. $499.94
 Supreme Performance  
Michelin Tires
Michelin Pilot Sport 4S 255/40R21
Pilot Sport 4S
Summer | 102Y XL
Avg. $508.50
 Supreme Performance  
30K Miles
Pirelli Tires
Pirelli Scorpion Zero All Season 255/40R21
Scorpion Zero All Season
Truck/SUV All Season | 102W XL
Avg. $524.00
 Sport  
Hankook Tires
Hankook Ventus S1 evo Z 255/40R21
Ventus S1 evo Z
Summer | 102Y XL
Avg. $525.00
 Supreme Performance  
Pirelli Tires
Pirelli Scorpion Zero All Season Plus 255/40R21
Scorpion Zero All Season Plus
Truck/SUV All Season | 102W XL
Avg. $534.00
 Sport  
50K Miles
Bridgestone Tires
Bridgestone Turanza 6 255/40R21
Turanza 6
Summer | 102Y XL
Avg. $543.00
 Grand Touring  
Michelin Tires
Michelin Pilot Sport EV 255/40R21
Pilot Sport EV
Summer | 102Y XL
Avg. $586.50
 Supreme Performance  
20K Miles