235/80R17 Tire Size

All You Need to Know About 235/80R17 Tires

235/80R17 tires are 235 mm wide, with an 80% aspect ratio and a 17-inch wheel diameter, resulting in an overall diameter of 31.8 inches and a sidewall height of 7.40 inches.

This page focuses on the standard 235/80R17 size and its physical dimensions. For reinforced construction, higher inflation pressure, and heavy-duty towing or payload applications, see LT235/80R17 tires.

The 235/80R17 size is commonly used in truck-oriented applications, where a tall sidewall and larger overall diameter help provide ride isolation, ground clearance, and support in more demanding service conditions.

Compared with a slightly shorter truck size, such as 235/75R17, the 235/80R17 adds sidewall depth and rolling radius. That extra height increases the tire’s cushioning capacity over broken pavement and uneven ground, while also changing effective gearing and ride height more noticeably than mid-profile 17-inch sizes do.

235/80R17 Size Quick Specs

• Approved rim width range: 6.0–8.0"
• Width: 235 mm
• Sidewall height: 188.0 mm
• Overall diameter: 31.8"
• Wheel diameter: 17 in

Note: The calculated overall diameter of 235/80R17 is ≈31.8 inches. Small variations may appear across manufacturers because tread depth and casing design can shift the mounted diameter slightly.

235/80R17 Common Vehicle Fitment

235/80R17 is tied more closely to heavy-duty pickup and chassis-cab use than to mainstream SUV applications. Common U.S.-market applications include:

• Ram 3500 (selected dual-rear-wheel configurations)
• GMC Sierra 3500HD (selected dual-rear-wheel configurations)
• Ford F-250 (earlier applications and selected configurations)

Because 235/80R17 is often encountered in heavier-duty service, it should be matched carefully to wheel specification, load requirement, and clearance under full compression. On these applications, construction type still matters as much as nominal size, especially when the replacement tire is expected to handle towing or payload duty. For those use cases, LT235/80R17 tires are the more appropriate reference point.

235/80R17 Dimensions in Inches

The 235/80R17 tire size measures approximately 9.25 inches in width, 31.8 inches in overall diameter, and has a sidewall height of about 7.40 inches.

The most defining measurement in 235/80R17 is the sidewall. At 7.40 inches, it gives the tire a large deflection zone that helps manage harsh impacts and maintain stability over rough surfaces, but it also allows more sidewall movement than shorter 17-inch truck sizes during rapid directional changes.

235/80R17 in Inches: All Measurements

• Overall diameter: ≈31.8"
• Width: 9.25"
• Sidewall height: 7.40"
• Wheel diameter: 17"
• Circumference: 99.92" (≈99.9")

Most Recommended 235/80R17 Tires

Best tires in 235/80R17 size include:

• 235/80R17 dually tires 10 Ply: Continental TerrainContact H/T
• All-terrain tires in 235/80R17: Hankook Dynapro AT2 Xtreme RF12
• 235/80R17 tires in value-focused sets: Kumho Crugen HT51, Toyo Open Country H/T II

Comparison of 235/80R17 With Similar Tire Sizes

Among taller 17-inch truck sizes, 235/80R17 sits above 235/75R17 in overall height while remaining narrower than some common alternatives. The closest reference points here are 235/75R17 as the slightly shorter option and 245/75R17 as a wider size that stays close in diameter.

Difference Between 235/80R17 and 235/75R17 Tire Sizes

The 235/75R17 is shorter while maintaining the same width:

• Width: identical at 235 mm
• Overall diameter: 235/75R17 is ≈0.93 inches (≈2.9%) smaller than 235/80R17

Because this gap lands right at the upper edge of the ±3% rule, 235/80R17 and 235/75R17 should be treated as borderline replacements rather than automatic substitutes. The shorter 235/75R17 reduces effective ride height and increases revolutions per mile, which can influence speedometer reading and towing behavior.

Difference Between 235/80R17 and 245/75R17 Tire Sizes

The 245/75R17 is wider but slightly smaller in overall diameter:

• Width: 245/75R17 is 10 mm wider than 235/80R17
• Overall diameter: 245/75R17 is ≈0.35 inches (≈1.1%) smaller than 235/80R17

Since the diameter difference stays within the ±3% range, 235/80R17 and 245/75R17 are generally interchangeable from a rolling-diameter standpoint. The practical change comes from the section width: 245/75R17 occupies more lateral space, so clearance near suspension hardware and the approved wheel-width range should both be checked before installation.