Will a 255 tire fit a 9 inch rim?

Yes, a 9-inch rim is generally the maximum approved width for most 255 tires. It will provide a slightly stretched, stiff sidewall which improves cornering response but reduces ride comfort.

Can I put a 255 tire on a 7 inch rim?

Yes, but it is the absolute minimum approved width. Mounting a 255 on a 7-inch rim causes the tire to bulge significantly in the center, which can lead to rapid center tread wear if over-inflated.

What is the difference between a 245 and 255 tire?

A 255 tire is 10 millimeters (about 0.4 inches) wider than a 245 tire. It provides a slightly larger contact patch with the road for better traction.

Is a 255 tire considered wide?

A 255 is considered a medium-wide tire. It is a very common factory upgrade size for mid-size SUVs (like the Ford Explorer) and mid-size trucks (like the Toyota Tacoma).

Will a 255 tire rub on my car?

If your vehicle originally came with a 235 or 245 tire, moving up to a 255 is usually safe and will not rub, but you should always check the clearance between the inner sidewall and the suspension strut before driving.

What Size Rim for a 255 Tire?

Find the minimum, maximum, and ideal safe rim width required for mounting any 255 series tire.

Quick Answer

For a 255mm wide tire, the manufacturer-approved rim width range is typically between 7.0 and 9.0 inches. If you are mounting a common mid-size truck or SUV size like a 255/70R18, using an 8.0-inch wide wheel is the ideal fitment for optimal handling and tread longevity.

Tire Width (mm)

Rim Width (inches)

Rim width fitment chart (ETRTO standard)

Tire Width	Recommended	Acceptable

Rim Fitment for Popular 255 Tire Sizes

Tire Size	Minimum Rim	Ideal Rim	Maximum Rim
255/75R17	6.5"	7.0" – 7.5"	8.5"
255/70R18	6.5"	7.5"	8.5"
255/65R18	7.0"	7.5" – 8.0"	9.0"
255/60R19	7.0"	7.5"	9.0"
255/55R20	7.0"	8.0"	9.0"
255/45R20	8.0"	8.5"	9.5" (low profile limits range)

Formula

255mm ÷ 25.4 = 10.04" wide | Ideal Rim = 10.04 × 0.85 = 8.53"

Ideal target = 8.0 to 8.5 inches for most 255 applications
Taller sidewalls (like 255/75) allow a slightly narrower 6.5–7.0 inch rim safely
Low-profile tires (like 255/45) need a wider minimum of 8.0 inches
Best all-around choice for 255/70R18: 7.5-inch rim

Frequently Asked Questions

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