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305/40R20 Tires

305/40R20 tires have a diameter of 29.6", a section width of 12.0", and a wheel diameter of 20". The circumference is 93.0" and they have 682 revolutions per mile.
Generally they are approved to be mounted on 10-12" wide wheels.
Specs may vary by manufacturer. learn more
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305/40R20 Tire Front
12.0"
29.6"
305/40R20 Tire Side
20 Inch Wheel
Circumference
93.0"
20"
4.8"
682 Revs/Mile
305/40R20
Diameter : 29.6"
Width : 12.0"
Wheel : 20" x 10-12"
Sidewall : 4.8"
Circum. : 93.0"
Revs/Mile : 682

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.
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Select a Size to Compare Prices on Available Tires

Michelin Tires
Michelin Pilot Sport A/S 3 N-Spec 305/40R20
Pilot Sport A/S 3 N-Spec
All Season | 112V XL
Avg. $354.00
 High Performance 
45K Miles
Bridgestone Tires
Bridgestone Dueler H/P Sport 305/40R20
Dueler H/P Sport
Truck/SUV Summer | 112Y XL
Avg. $361.00
 Sport 
Pirelli Tires
Pirelli P Zero 305/40R20
P Zero
Summer | 112Y XL
Avg. $481.00
 Supreme Performance 
Pirelli Tires
Pirelli Scorpion Verde All Season 305/40R20
Scorpion Verde All Season
Truck/SUV All Season | 112V XL
Avg. $483.00
 Touring