2017 Ford Explorer Sport Tire Size – Choosing The Right Rubber
The 2017 Ford Explorer Sport comes factory-equipped with 255/50R20 tires, designed to balance the vehicle’s twin-turbocharged performance with daily driving comfort. Selecting the right replacement involves understanding your specific driving needs, whether you prioritize all-season reliability or enhanced grip for spirited handling.
You have likely found yourself staring at the sidewall of your tire, wondering if those numbers are just a suggestion or a strict requirement for your 2017 Ford Explorer Sport tire size. Whether you are prepping for a cross-country road trip or simply looking to replace worn-out rubber, choosing the right tire is the single most important decision you can make for your vehicle’s safety and performance.
At EngineNeeds, we know that the Sport trim is a different beast compared to the base model. With its beefier suspension and increased power, you cannot just throw any tire on these rims. Let’s dive into how to navigate your options and keep your SUV performing exactly as Ford intended.
Understanding Your 2017 Ford Explorer Sport Tire Size Specifications
The factory specification for your Sport trim is 255/50R20. This indicates a tire width of 255 millimeters, an aspect ratio (sidewall height) of 50 percent, and a fitment for a 20-inch wheel.
Because the Sport model sits on 20-inch alloy wheels, your options for downsizing are limited due to the size of the front brake rotors. You must maintain the factory diameter to ensure your Anti-lock Braking System (ABS) and stability control sensors function correctly.
When shopping, always look for the load index and speed rating on the sidewall. The 2017 Sport requires a high load rating to support the weight of the twin-turbo V6 engine and the chassis, so do not settle for lower-tier passenger car tires.
Choosing Between All-Season and Performance Rubber
The “Sport” badge suggests you might enjoy a spirited drive, but the Explorer is still a heavy SUV. Your choice of tire compound will drastically change how the vehicle feels in corners and during wet weather braking.
All-Season Performance Tires
Most owners opt for high-performance all-season tires. These offer a balanced tread compound that stays flexible in cooler temperatures while providing enough grip for highway commuting.
- Pros: Long tread life and quiet road noise.
- Cons: Less lateral grip during aggressive cornering.
Summer Performance Tires
If you live in a climate where temperatures rarely drop below 45 degrees Fahrenheit, summer tires are a great upgrade. These feature a softer rubber compound that “sticks” to the road, significantly reducing your stopping distance in the rain.
The Importance of Load Index and Speed Ratings
Your 2017 Ford Explorer Sport tire size is not just about the physical dimensions. The load index tells you how much weight each tire can safely carry, while the speed rating indicates the maximum speed the tire can handle under that load.
For this specific vehicle, you should aim for a load index of at least 105 or 109. Installing a tire with a lower load index can cause the sidewall to flex excessively, leading to unpredictable handling and potential tire failure at highway speeds.
Always check the Tire and Loading Information placard located on the driver’s side door jamb. This factory sticker provides the exact cold tire pressure requirements, which are vital for maintaining even tread wear across all four wheels.
Common Challenges When Upsizing or Changing Profiles
Many enthusiasts want to “fill out” the wheel wells with a wider or taller tire. While this looks aggressive, it introduces several mechanical headaches you need to consider before hitting the checkout button.
Speedometer Calibration
Changing the overall diameter of your tires will throw off your speedometer and odometer readings. A larger tire means you are traveling faster than what is displayed on your dash, which can lead to unwanted speeding tickets.
Rubbing and Clearance
The front wheel wells on the 2017 Explorer are tight. If you move to a wider tire, you risk rubbing the inner fender liners or the suspension struts during full-lock turns. Always consult a local tire shop’s fitment guide before experimenting with non-standard sizes.
Best Practices for Maintaining Your Tire Health
Investing in a premium set of tires is a waste of money if you do not maintain them properly. Follow these simple steps to extend the life of your investment and keep your ride smooth.
- Check Pressure Monthly: Use a high-quality digital gauge to check your cold tire pressure, especially when the seasons change.
- Rotate Regularly: Rotate your tires every 5,000 to 7,500 miles to ensure the front and rear tread wear evenly.
- Alignment Matters: If your steering wheel feels off-center or the vehicle pulls to one side, get a professional alignment immediately to prevent “feathering” on your tire shoulders.
Frequently Asked Questions About 2017 Ford Explorer Sport Tire Size
Can I put 18-inch wheels on my 2017 Sport?
While some smaller-braked Explorer models use 18-inch wheels, the Sport trim features larger front brake calipers. Before attempting to downsize, test-fit an 18-inch wheel to ensure it clears the caliper housing without rubbing.
What is the benefit of a higher speed rating?
A higher speed rating, such as “V” or “W,” usually indicates a more robust internal construction and a stickier rubber compound. This provides better stability and steering response, even if you never reach those top speeds.
Should I use nitrogen instead of air?
Nitrogen is less sensitive to temperature fluctuations, meaning your tire pressure will stay more consistent over long trips. However, for daily driving, standard compressed air is perfectly acceptable as long as you monitor your pressures regularly.
How do I know when it is time to replace my tires?
Use the “penny test” by inserting a penny into the tread groove with Lincoln’s head upside down. If you can see the top of his head, your tread depth is insufficient, and it is time for a new set of tires to ensure safe traction.
Replacing your tires is an investment in your safety and your vehicle’s performance. By sticking to the correct 2017 Ford Explorer Sport tire size and keeping up with routine maintenance, you ensure that your SUV remains reliable for every adventure ahead. Stay safe on the road and enjoy the drive!
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