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305/25R21 Tires

305/25R21 tires have a diameter of 27.0", a section width of 12.0", and a wheel diameter of 21". The circumference is 84.8" and they have 747 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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305/25R21 Tire Front
12.0"
27.0"
305/25R21 Tire Side
21 Inch Wheel
Circumference
84.8"
21"
3.0"
747 Revs/Mile
305/25R21
Diameter : 27.0"
Width : 12.0"
Wheel : 21" x 10.5-11.5"
Sidewall : 3.0"
Circum. : 84.8"
Revs/Mile : 747

Upsizing Wheels or Tires?

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Select a Size to Compare Prices on Available Tires

Michelin Tires
 Michelin Pilot Sport 4S 305/25R21
Pilot Sport 4S
Summer | 98Y XL
Avg. $477.00
 Supreme Performance  
30K Miles