What is the maximum tire size for a 2015 Ford Expedition?
For most 2015 Expeditions, the largest tire size you can run without modifying the suspension or body is about 33 inches in overall diameter, typically achieved with 275/60R20 tires on the factory 20-inch wheels. On 18-inch wheel setups, you can often approach the same diameter with 275/65R18 or similar, depending on trim and clearance.
Understanding what defines the limit
In practice, the exact maximum is determined by several factors, including wheel diameter, tire width and aspect ratio, fender clearance, and how the vehicle's ABS, speedometer, and traction control systems respond to a larger tire. Ford specifies tire size ranges for each trim and wheel package, and exceeding those limits can lead to rubbing, reduced braking performance, and inaccurate readings.
- Wheel diameter and offset: Larger wheels require more clearance around suspension and inner fenders.
- Tire aspect ratio and width: Taller, wider tires increase diameter and may rub on a fender or suspension components.
- Fender clearance and potential lift: Some trims have less room; a lift or spacers may be needed for larger tires.
- Impact on sensors and gearing: Larger tires can affect speedometer accuracy, ABS/traction control calibration, and overall gearing.
- Official guidance: Use the Tire and Wheel information in your owner's manual and door sticker to stay within recommended ranges for your wheel package.
In short: before purchasing, verify fit with the actual wheel and tire combination on your specific 2015 Expedition model.
Common maximums by wheel size
To give a practical sense of what's commonly used, here are typical maximums associated with the two main wheel sizes offered on the 2015 Expedition. Exact fitment depends on trim and factory options, so confirm with your dealer or manual.
- 20-inch wheels: up to 275/60R20 is a common maximum, yielding about 33.0 inches in overall diameter.
- 18-inch wheels: larger sidewalls such as 275/65R18 or similar can bring diameter into the low-32s inches, depending on clearance; verify with your configuration.
Always perform a test fit and consult Ford’s official documentation for your exact trim and wheel package.
How to verify the fit on your 2015 Expedition
To confirm the exact maximum tire size for your truck, follow these steps:
- Check the door jamb tire sticker and the owner's manual for the official size range for your wheel package.
- Mount the tire/wheel combination and turn the steering from lock-to-lock to check for rub at full articulation.
- Inspect clearances at the fender lips, control arms, and rear suspension during compression and wheel travel.
- Take a slow test drive to listen for rubbing and ensure there is no contact with body or suspension components.
- Recalibrate the speedometer if you change tire size, and verify braking and ABS/traction control performance.
With these checks, you can determine whether a larger tire is suitable for your specific Expedition without compromising safety or performance.
Summary
In general, for a 2015 Ford Expedition, expect a practical maximum around 33 inches in overall tire diameter, with 275/60R20 on 20-inch wheels serving as a common example. The actual limit depends on trim, wheel choice, and clearance, so always confirm with the owner's manual and perform a hands-on test fit. Upgrading tires can affect speedometer accuracy and braking performance, so proceed carefully and consider professional installation if you're unsure.
What year of Ford Expedition to stay away from?
Avoid used Expeditions model years from 2003 to 2006, due to frequent problems and high repair costs. Used Expeditions from 2018 to 2024 come with the highest reliability scores! Regardless of model year, about 31 percent of Expeditions suffer from engine issues. Around 28% experience AC and electrical issues.
What size tires are on a 2015 Ford Expedition?
The Ford Expedition has several stock tire sizes, including 265/70R18 tires, 275/65R18 tires, 275/55R20 tires and 285/45R22 tires.
How much bigger can you go on tire size?
When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Any more than this and you face the risk of brake failure. This tire calculator is for information purposes only and we do not guarantee fitment based on this calculator alone.
What size tires fit a Ford Expedition?
Browse 2023 Ford Expedition tires by Trim and Size.
| Trim | Tire Size |
|---|---|
| Limited | 285/45R22 114H XL |
| Max King Ranch | 285/45R22 114H XL |
| Max Limited | 275/55R20 113T |
| Max Limited | 285/45R22 114H XL |
