Semi Truck Tire Sizes
275/80R22.5 vs 295/75R22.5
Both 275/80R22.5 and 295/75R22.5 mount on 22.5-inch diameter wheels and share overlapping applications, but they are not the same tire. The 275/80 is narrower with a taller sidewall; the 295/75 is wider with a shorter sidewall. Their overall diameters are close but not identical, which matters when mixing on an axle or switching between them.
Typical dimension data in the table below represents manufacturer-reported ranges for representative tires in each size. Always verify exact dimensions from the current manufacturer data sheet for the specific tire model being considered.
Size comparison (typical ranges)
| Dimension | 275/80R22.5 | 295/75R22.5 | Notes |
|---|---|---|---|
| Section width (inflated, unmounted) | ~10.6–10.9 inch (269–277 mm) | ~11.4–11.8 inch (290–300 mm) | 295/75 is about 0.7–1.0 inch wider |
| Overall diameter (inflated, unloaded) | ~40.7–41.3 inch | ~39.4–40.1 inch | 275/80 is taller — different ride height and rev/mile |
| Revolutions per mile (approx.) | ~500–510 | ~513–525 | Different speedometer and odometer effect if mixed positions |
| Aspect ratio | 80% | 75% | 275/80 has a taller sidewall relative to its width |
| Typical approved rim widths | 7.5–9.0 inch | 8.25–9.75 inch | Confirm manufacturer rim width specification for the specific tire |
Application differences
| Factor | 275/80R22.5 | 295/75R22.5 |
|---|---|---|
| Common use | Steer and drive positions; regional and highway service | Steer, drive, and trailer positions; very common in fleets |
| Sidewall height | Taller — more flex, slightly more cushion | Shorter — stiffer sidewall, common in low-profile conversions |
| Footprint | Narrower — slightly more focused contact patch | Wider — broader contact patch for load distribution |
| Fuel economy | Similar at correct pressure; minor differences depend on tread pattern | Similar; low-rolling-resistance options available in both sizes |
| Clearance | Taller OD — check fifth-wheel height and fender clearance when switching | Shorter OD — may reduce fifth-wheel height slightly vs 275/80 |
Mixing caution
The different overall diameters and revolutions per mile between 275/80R22.5 and 295/75R22.5 make them unsuitable for pairing in a dual assembly. Mixing these sizes as duals would create a circumference mismatch causing one tire to drag. If switching a fleet from one size to the other, replace both tires in each dual set simultaneously. Also check that the replacement size fits within the approved rim width range for the wheels on the vehicle.
Load ratings
Both sizes are available in multiple load ranges. Load range G (max 110 PSI cold) and Load Range H (max 120 PSI cold) are common. The actual load capacity for a specific tire in each size must come from the manufacturer's load and inflation table for that exact model. Do not apply load capacity data from one manufacturer's 295/75R22.5 to another brand's 295/75R22.5 without verifying.
Size Verification Checklist
- Verify exact dimensions from the current manufacturer data sheet — not this page.
- Do not mix 275/80 and 295/75 as duals on the same axle end.
- Check rim width compatibility before installing a different size.
- Recalculate fifth-wheel height impact if switching steer or drive tires.
FAQ
Can 275/80R22.5 and 295/75R22.5 tires be used together on the same axle?
No — not as duals. The two sizes have different overall diameters and different revolutions per mile. Pairing them in a dual assembly causes the smaller-circumference tire to drag against the road surface, generating heat and accelerated wear. They can coexist on the same truck if one size is used on the steer axle and a different size on the drive or trailer, but mixing them within a single dual assembly is not acceptable practice.
Which size gives better fuel economy — 275/80R22.5 or 295/75R22.5?
Fuel economy differences between these two sizes are minor and depend more on tread compound, tread pattern, and inflation than on the size designation itself. Both sizes are available in low-rolling-resistance variants. Correct inflation — based on the actual axle load from the manufacturer's table — has a larger effect on fuel economy than the choice between these two specific sizes. If fuel economy is the primary concern, compare rolling resistance ratings within each size rather than between the sizes.
Is 275/80R22.5 or 295/75R22.5 more common on semi trucks?
295/75R22.5 is more widely used across the North American fleet. It became more common as fleets shifted from traditional bias-ply and early radial sizes and is available from more manufacturers and in more tread pattern options than 275/80R22.5. The 275/80R22.5 remains common in certain regional and vocational applications where its slightly taller sidewall or specific dimensional profile is preferred. Neither size is being phased out — both are current and widely available.
Source Notes
- Manufacturer Michelin Truck Tire Data Book / Load and Inflation Resources
- Manufacturer Goodyear Commercial Truck Tire Resources
- Manufacturer Bridgestone Commercial Truck Tire Resources
- Site note TruckTireGuide.com editorial notes