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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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Toyo Tires
 Toyo Proxes Sport 255/40R21
Proxes Sport
Summer | 102Y XL
Avg. $259.00
 Supreme Performance  
25K Miles
Falken Tires
 Falken Azenis FK460 A/S 255/40R21
Azenis FK460 A/S
All Season | 102Y XL
Avg. $270.00
 Ultra High Performance  
50K Miles
Pirelli Tires
 Pirelli Scorpion Winter 255/40R21
Scorpion Winter
Truck/SUV Winter | 102V XL
Avg. $304.00
 Performance  
Toyo Tires
 Toyo Celsius Sport 255/40R21
Celsius Sport
All Season | 102Y XL
Avg. $321.00
 Grand Touring  
40K Miles
Michelin Tires
 Michelin Primacy Tour A/S 255/40R21
Primacy Tour A/S
All Season | 102W XL
Avg. $328.50
 Grand Touring  
45K Miles
Continental Tires
 Continental ContiSportContact 5P 255/40R21
ContiSportContact 5P
Summer | 102Y XL
Avg. $330.25
 Supreme Performance  
Michelin Tires
 Michelin CrossClimate 2 255/40R21
CrossClimate 2
All Season | 102V XL
Avg. $331.00
 Grand Touring  
60K Miles
Continental Tires
 Continental SportContact 6 255/40R21
SportContact 6
Summer | 102Y XL
Avg. $341.60
 Supreme Performance  
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
Goodyear Tires
 Goodyear Eagle F1 Asymmetric 3 SUV 255/40R21
Eagle F1 Asymmetric 3 SUV
Truck/SUV Summer | 102Y XL
Avg. $353.00
 Sport  
Continental Tires
 Continental ContiSportContact 5 255/40R21
ContiSportContact 5
Summer | 102Y XL
Avg. $355.25
 Supreme Performance  
Continental Tires
 Continental CrossContact RX 255/40R21
CrossContact RX
Truck/SUV All Season | 102V XL
Avg. $366.00
 Touring  
Pirelli Tires
 Pirelli P Zero Winter 255/40R21
P Zero Winter
Winter | 102H XL
Avg. $371.00
 Performance  
Continental Tires
 Continental CrossContact RX 255/40R21
CrossContact RX
Truck/SUV All Season | 102W XL
Avg. $374.00
 Touring  
Michelin Tires
 Michelin Pilot Sport 4 SUV 255/40R21
Pilot Sport 4 SUV
Truck/SUV Summer | 102Y XL
Avg. $391.67
 Sport  
20K Miles
Pirelli Tires
 Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102V XL
Avg. $418.00
 Supreme Performance  
$70 REBATE
Bridgestone Tires
 Bridgestone Potenza Sport 255/40R21
Potenza Sport
Summer | 102Y XL
Avg. $439.00
 Supreme Performance  
Pirelli Tires
 Pirelli P Zero 255/40R21
P Zero
Summer | 102Y XL
Avg. $439.50
 Supreme Performance  
Michelin Tires
 Michelin Pilot Sport All Season 4 255/40R21
Pilot Sport All Season 4
All Season | 102Y XL
Avg. $442.00
 Ultra High Performance  
45K Miles
Pirelli Tires
 Pirelli Scorpion Zero All Season 255/40R21
Scorpion Zero All Season
Truck/SUV All Season | 102V XL
Avg. $451.21
 Sport  
Pirelli Tires
 Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102Y XL
Avg. $451.80
 Supreme Performance  
Michelin Tires
 Michelin Pilot Sport 4S 255/40R21
Pilot Sport 4S
Summer | 105Y HL
Avg. $455.00
 Supreme Performance  
30K Miles
Michelin Tires
 Michelin Pilot Sport 4S 255/40R21
Pilot Sport 4S
Summer | 102Y XL
Avg. $483.25
 Supreme Performance  
30K Miles
Goodyear Tires
 Goodyear Eagle F1 Asymmetric 5 255/40R21
Eagle F1 Asymmetric 5
Summer | 102Y XL
Avg. $496.00
 Supreme Performance  
Pirelli Tires
 Pirelli P Zero PZ4 255/40R21
P Zero PZ4
Summer | 102W XL
Avg. $500.00
 Supreme Performance  
Pirelli Tires
 Pirelli Scorpion Zero All Season Plus 255/40R21
Scorpion Zero All Season Plus
Truck/SUV All Season | 102W XL
Avg. $509.00
 Sport  
50K Miles
Dunlop Tires
 Dunlop SP Sport Maxx GT 255/40R21
SP Sport Maxx GT
Summer | 102Y XL
Avg. $523.00
 Supreme Performance  
$70 REBATE
Bridgestone Tires
 Bridgestone Turanza 6 255/40R21
Turanza 6
Summer | 102Y XL
Avg. $531.00
 Grand Touring  
Michelin Tires
 Michelin Pilot Sport EV 255/40R21
Pilot Sport EV
Summer | 102Y XL
Avg. $563.00
 Supreme Performance  
20K Miles
Dunlop Tires
 Dunlop Sport Maxx RT2 255/40R21
Sport Maxx RT2
Summer | 102Y XL
Avg. $670.00
 Supreme Performance