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315/40R21 Tires

315/40R21 tires have a diameter of 30.9", a section width of 12.4", and a wheel diameter of 21". The circumference is 97.1" and the revolutions per mile are 653.
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315/40R21 Tire Front
12.4"
30.9"
315/40R21 Tire Side
21 Inch Wheel
Circumference
97.1"
21"
5.0"
653 Revs/Mile
315/40R21
Diameter : 30.9"
Width : 12.4"
Wheel : 21"
Sidewall : 5.0"
Circum. : 97.1"
Revs/Mile : 653

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315/40R21 Summer Tires

Pirelli Tires
 Pirelli P Zero 315/40R21
P Zero
Avg. $408.70

315/40R21 Truck/SUV All Season Tires

Continental Tires
 Continental CrossContact LX Sport 315/40R21
CrossContact LX Sport
Avg. $317.70

315/40R21 Truck/SUV Winter Tires

$70 REBATE
Pirelli Tires
 Pirelli Scorpion Winter 315/40R21
Scorpion Winter
Avg. $458.63

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