How to Pick the Perfect Tire Size for a 2017 Honda Ridgeline
When it comes to the 2017 Honda Ridgeline, tire size isn’t just about aesthetics—it's a balance of ride comfort, fuel efficiency, and off‑road capability. Whether you’re swapping a worn set, upgrading for a weekend adventure, or simply curious about the options, understanding how to choose the right tire size can save you money and headaches down the road.
Why Tire Size Matters for Your 2017 Ridgeline
The Ridgeline’s unibody design and independent rear suspension are tuned for a specific range of tire dimensions. Straying too far from those specs can affect handling, ABS calibration, and even the accuracy of your speedometer. On the flip side, the right size can improve traction on gravel, lower road noise, and give the truck a more aggressive stance without sacrificing comfort.
Decoding the OEM Spec Sheet
The factory‑installed tires on a 2017 Honda Ridgeline are typically marked 245/70R17. Let’s break that down:
- 245 – tread width in millimeters.
- 70 – aspect ratio, meaning the sidewall height is 70% of the width.
- R – radial construction.
- 17 – wheel diameter in inches.
These numbers aren’t arbitrary; they’re the result of extensive testing to ensure the vehicle’s weight distribution, gear ratios, and suspension geometry work together harmoniously.
When to Stay Stock vs. Going Bigger
If you mostly stick to paved highways, staying with the OEM size or a marginal change (like 255/65R17) keeps your ride smooth and your fuel gauge honest. However, owners who venture onto dirt roads or need extra load‑carrying capacity often look at larger diameters—commonly 18‑inch wheels paired with 265/60R18 tires. The trade‑off? Slightly stiffer sidewalls and a modest increase in rolling resistance, which can nudge fuel consumption up a few tenths of a gallon per 100 miles.
How to Calculate the Right Width and Aspect Ratio
Wider tires (e.g., 265mm) provide a broader contact patch, which can improve cornering grip—especially useful if you tow a boat or trailer. The downside is a higher chance of rubbing on the inner fender wells during full lock turns. As a rule of thumb, stay within a 10‑mm increase over the stock width unless you’re willing to modify the fender or adjust the suspension.
The aspect ratio influences sidewall flexibility. A lower ratio (like 65) yields a sportier feel but reduces the cushion that absorbs bumps. For a daily driver that still wants occasional off‑road capability, an aspect ratio between 65 and 70 strikes a good compromise.
Choosing the Right Wheel Diameter
Switching from 17‑inch to 18‑inch wheels is the most common upgrade for the 2017 Ridgeline. The larger wheel allows for a larger brake rotor, which can improve stopping power under load. However, you must pair the new wheel with a tire that maintains an overall diameter close to the original—typically within a 3% variance. This ensures your speedometer remains accurate and the anti‑lock braking system stays calibrated.
To verify the overall diameter, multiply the width by the aspect ratio (as a decimal) and double it, then add the wheel size converted to millimeters (1 inch = 25.4 mm). For example, a 265/60R18 tire calculates to about 30.9 inches, just a hair larger than the stock 30.6 inches—well within the acceptable range.
Practical Tips for Buying and Installing
- **Check Load Index and Speed Rating.** The Ridgeline’s OEM tires carry a load index of 106 (1,260 lb per tire) and a speed rating of H (130 mph). Choose a replacement that meets or exceeds these numbers.
- **Match the Tire Type to Your Climate.** All‑season tires are a safe bet for most U.S. regions, but if you live where winters are harsh, a dedicated winter tire with a higher snow traction rating will perform better.
- **Mind the Spare.** The Ridgeline’s temporary spare is sized for the stock tire. If you move to a larger diameter, keep a full‑size spare that matches the new setup, or be prepared for a temporary speed limitation when you use the compact spare.
- **Get Professional Mounting.** Modern tires are often glued to the wheel, especially low‑profile models. A reputable shop can ensure the bead seats correctly and the torque specs are spot‑on.
Frequently Asked Questions
Can I fit 18‑inch wheels on a 2017 Ridgeline without modifications? Yes—most 18‑inch wheels that are 6.5–7.5 inches wide will bolt on directly, provided the tire’s overall diameter stays within the 3% tolerance.
Will larger tires affect my fuel economy? Generally, a modest increase in width or diameter may reduce fuel efficiency by 1‑2% due to higher rolling resistance and added weight. The impact is usually noticeable only on long highway trips.
Is it safe to run a lower aspect ratio for a sportier look? Lower aspect ratios (e.g., 55) can make the ride harsher and increase the risk of rim damage on rough roads. For the Ridgeline’s unibody chassis, staying at 60‑65 is advisable.
Do I need to re‑program my speedometer after changing tire size? If the new overall diameter stays within the 3% window, the factory speedometer remains accurate and no re‑programming is required.
