Will a 245 tire fit an 8.5 inch rim?

Yes, an 8.5-inch rim is generally the maximum safe approved width for a 245 tire. It will give the sidewall a slightly stretched, stiff appearance but is completely safe for normal driving.

Can I put a 245 tire on a 9 inch rim?

No, a 9-inch rim is too wide for a standard 245 tire. Mounting it will cause severe sidewall stretch, increasing the risk of bead failure and exposing the metal rim lip to curb damage.

What does the 245 mean on my tire?

The 245 is the cross-section width of the tire measured in millimeters. It means your tire is exactly 245 millimeters (about 9.64 inches) wide from one sidewall to the other.

Can I upgrade from a 225 to a 245 tire?

Upgrading from 225 to 245 adds 20mm (about 0.8 inches) of width. This is a very common upgrade that adds traction. However, you must verify that your current wheels are at least 7.0 inches wide to safely hold the new 245 tires.

Will 245 tires rub on my car?

If your car originally came with significantly smaller tires (like a 215 or 225), a 245 tire might rub on the suspension struts or the inner plastic fender liners when turning the steering wheel all the way to lock. Check clearance before upgrading.

What Size Rim for a 245 Tire?

View the safe minimum, maximum, and ideal rim width measurements for safely mounting 245 millimeter wide tires.

Quick Answer

A standard 245mm wide tire requires a wheel rim that is between 7.0 and 8.5 inches wide. For most standard SUV and truck applications, such as a 245/75R16 or a 245/65R17, using an 8.0-inch wide rim provides the best structural support for the tire sidewall.

Tire Width (mm)

Rim Width (inches)

Rim width fitment chart (ETRTO standard)

Tire Width	Recommended	Acceptable

Rim Fitment for Popular 245 Tire Sizes

Tire Size	Minimum Rim	Ideal Rim	Maximum Rim
245/75R16	6.5"	7.0"	8.0"
245/70R17	6.5"	7.5"	8.0"
245/65R17	7.0"	7.5"	8.5"
245/60R18	7.0"	7.5"	8.5"
245/50R20	7.0"	7.5" – 8.0"	8.5"
245/45R20	7.5"	8.0"	9.0"

Formula

245mm ÷ 25.4 = 9.64" wide | Ideal Rim = 9.64 × 0.85 = 8.19"

Ideal target = roughly 8.0 inches for most 245 applications
Taller sidewalls (like 245/75) work safely on narrower 6.5–7.0 inch rims
Low-profile tires (like 245/45) require a wider minimum of 7.5 inches
Best all-around choice for 245/65R17: 7.5-inch rim

Frequently Asked Questions

Related Tire Fit Calculators

Will This Tire Fit My Rim? Rim Width Calculator for Any Tire Rim Width for 225mm Tires Rim Width for 255mm Tires

Back to All Tire Fit Calculators All Calculators