P 255/40 R21 tires

Tire Specs

Overall Diameter - How tall is P 255/40 R21? 29.03"
Section Width 255 mm
Rim Diameter 21"
Rim Width Range 21x8.5, 21x9.0, 21x9.5
Sidewall Height 4.02"
Circumference 91.2 "
Revs per Mile 694.74/mi

P 255/40 R21 tire size Fits What Cars?

Explore the collection of vehicles riding on P 255/40 R21 tire size which turns them into competitors to some extent.
The list of cars below is compiled assuming P 255/40 R21 is their factory tire size.

Upsizing Wheels or Tires?

We also suggest going over the similar tire sizes that have slightly different parameters but still might be even a better fit for your vehicle with many of the combinations already applied by car enthusiasts.

Below is the list of all possible alternatives to P 255/40 R21 within delta of no more than three percent which means you can shift to wider wheels with smaller aspect ratio and vice versa. Wheel experts do not recommend to decrease the diameter of the wheel. So if you are not sure what other tire sizes would match your ride simply stick to the factory wheels.

P 305/30 R21 -2.84%
P 265/35 R21 -2.50%
P 315/30 R21 -2.03%
P 275/35 R21 -1.55%
P 325/30 R21 -1.22%
P 255/40 R21 +0.01%
P 235/45 R21 +1.01%
P 265/40 R21 +1.08%
P 275/40 R21 +2.13%
P 245/45 R21 +2.19%

Modified cars that use P 255/40 R21 tire size

We keep an updated collection of cars that gave up factory wheels and installed P 255/40 R21 instead as their aftermarket tire size. Each project is a unique experience with details on P 235/55 R18 installation issues or subsequent changes while driving.

  • 2014 Audi Q5

    • ADV.1 6 MV2 21x9.0 , 21x9.5
    • P 255/40 R21
  • 2014 Audi Q5

    • Avant Garde M510 21x9.0 +25
    • P 255/40 R21