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315/30R21 Tires

315/30R21 tires have a diameter of 28.4", a section width of 12.4", and a wheel diameter of 21". The circumference is 89.3" and they have 709 revolutions per mile.
Generally they are approved to be mounted on 10.5-11.5" wide wheels.
Specs may vary by manufacturer. learn more
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315/30R21 Tire Front
12.4"
28.4"
315/30R21 Tire Side
21 Inch Wheel
Circumference
89.3"
21"
3.7"
709 Revs/Mile
315/30R21
Diameter : 28.4"
Width : 12.4"
Wheel : 21" x 10.5-11.5"
Sidewall : 3.7"
Circum. : 89.3"
Revs/Mile : 709

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Michelin Tires
Michelin Pilot Sport A/S 3 Plus 315/30R21
Pilot Sport A/S 3 Plus
All Season | 105V XL
Avg. $428.00
 Ultra High Performance  
45K Miles
$110 REBATE
Continental Tires
Continental ContiSportContact 5P 315/30R21
ContiSportContact 5P
Summer | 105Y XL
Avg. $451.50
 Supreme Performance  
Michelin Tires
Michelin Pilot Sport All Season 4 315/30R21
Pilot Sport All Season 4
All Season | 105V XL
Avg. $465.00
 Ultra High Performance  
45K Miles
Goodyear Tires
Goodyear Eagle F1 SuperSport R 315/30R21
Eagle F1 SuperSport R
Street/Racetrack | 105Y XL
Avg. $494.50
Goodyear Tires
Goodyear Eagle F1 SuperSport 315/30R21
Eagle F1 SuperSport
Summer | 105Y XL
Avg. $557.00
 Supreme Performance  
Pirelli Tires
Pirelli Cinturato P7 All Season 315/30R21
Cinturato P7 All Season
All Season | 105V XL
Avg. $571.00
 Grand Touring  
Pirelli Tires
Pirelli P Zero PZ4 315/30R21
P Zero PZ4
Summer | 105Y XL
Avg. $600.33
 Supreme Performance  
Michelin Tires
Michelin Pilot Sport 4 315/30R21
Pilot Sport 4
Summer | 105Y XL
Avg. $608.00
 Supreme Performance  
20K Miles
Michelin Tires
Michelin Pilot Sport Cup 2 315/30R21
Pilot Sport Cup 2
Street/Racetrack | 105Y XL
Avg. $629.75
Michelin Tires
Michelin Pilot Sport 4S 315/30R21
Pilot Sport 4S
Summer | 105Y XL
Avg. $644.00
 Supreme Performance  
30K Miles
Pirelli Tires
Pirelli Winter Sottozero 3 315/30R21
Winter Sottozero 3
Winter | 105V XL
Avg. $646.00
 Performance  
Pirelli Tires
Pirelli P Zero Winter 315/30R21
P Zero Winter
Winter | 105W XL
Avg. $678.00
 Performance  
Pirelli Tires
Pirelli P Zero Corsa PZC4 315/30R21
P Zero Corsa PZC4
Street/Racetrack | 105Y XL
Avg. $687.00
Michelin Tires
Michelin Pilot Sport Cup 2 R Track Connect 315/30R21
Pilot Sport Cup 2 R Track Connect
Street/Racetrack | 105Y XL
Avg. $743.00