255/40R21 Tire Pressure Chart

Corresponding tire load capacity at specified tire inflation pressures for 255/40R21 tires.

Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
255/40R21 (102 XL) 1276 lbs 1391 lbs 1506 lbs 1618 lbs 1656 lbs 1728 lbs 1836 lbs 1874 lbs (102 XL)
Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
255/40R21 102 XL 1276 lbs 1391 lbs 1506 lbs 1618 lbs 1656 lbs 1728 lbs 1836 lbs 1874 lbs (102 XL)

255/40R21 is an Metric tire.

Use our Replacement Tire Pressure Calculator to calculate proper tire inflation for replacement tires to match the original equipment tire load capacity on your vehicle.

255/40R21 102 XL is an Extra Load tire with a load index of 102 and a maximum tire load capacity of 1874 lbs @ 42 psi, capable of supporting up to 1874 pounds or 850 kilograms when inflated to its maximum air pressure of 42 pounds per square inch (psi) or 290 kilopascals (kPa).

All listed data and/or calculations are for informational purposes only. TirePressure.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall.

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Tires with 255/40R21 tire size

9 tire models are available in 255/40R21 tire size. Click on tire model to check its inflation and load capacity values.

Vehicles with 255/40R21 tire size

255/40R21 tire size is used for original equipment tires on 9 vehicles. Click on vehicle model to find its recommended tire pressure for 255/40R21 tires.

Replacement tire sizes compatible with 255/40R21 tire

255/40R21 tire can be replaced with 29 compatible tire sizes. Click on tire size to see its load and inflation table.