Determining what size are Honda Accord tires requires looking at the specific model year, as dimensions changed significantly between the tenth and eleventh generations. For the current eleventh generation, produced from 2018 to the present, the standard tire size is P175/65R17 for the base models. Owners of the Sport, EX, and Touring trims will typically find P185/60R18 performance-oriented tires fitted from the factory, providing better grip and handling dynamics.
Tire Size by Generation and Trim Level
Understanding the distinction between generations is critical when researching what size are Honda Accord tires, as the tenth generation (2018) and eleventh generation (2019+) utilize different standards. Within the eleventh generation, the tire size varies significantly based on the trim package selected. While the base LX uses a smaller 17-inch wheel, the higher trims move up to 18-inch wheels with a lower profile aspect ratio for aesthetic appeal and improved road feedback.
Standard Fitments for 2018 and 2019 Models
For the 2018 model year bridging the gap between the tenth and eleventh generations, the standard fitment is P175/65R17. This size remains common across many base trims of the eleventh generation due to its balance of comfort and efficiency. The 65 in the aspect ratio indicates a taller sidewall, which absorbs road imperfections effectively, making it ideal for daily commuting and long-distance driving without sacrificing too much handling precision.
Sport and Touring Trim Specifications
Drivers who opt for the Sport, EX, or Touring trims will encounter larger P185/60R18 tires. The reduction in the aspect ratio from 65 to 60 means the sidewall is shorter, resulting in a stiffer ride and more responsive steering. These dimensions are engineered to match the suspension tuning of the higher trims, ensuring optimal traction during acceleration and braking, particularly in varying weather conditions common to different regions.
The Importance of Correct Sizing
Choosing the correct dimensions when replacing tires is crucial for safety, fuel economy, and vehicle performance. Installing tires that are too wide can cause rubbing against the suspension or fender wells, especially when turning or encountering bumps. Conversely, tires that are too narrow may overheat or wear unevenly, reducing their lifespan and increasing the risk of blowouts on the highway.
Speedometer Accuracy: Incorrect diameters can cause the speedometer to read inaccurately, leading to speeding tickets.
Clearance Issues: Larger tires require trimming or fender rolling to prevent rubbing during hard cornering.
Load Rating: Ensuring the replacement tires meet or exceed the Gross Vehicle Weight Rating (GVWR) is essential for maintaining handling stability.
Speed Rating: Matching the speed rating (usually H or V) to the original equipment ensures the tire can handle the vehicle's top speed safely.
Aftermarket Options and Recommendations
While knowing what size are Honda Accord tires are the factory specifications is the baseline, many owners look to aftermarket options for customization. When upsizing to a larger wheel, such as 19 inches, it is generally recommended not to increase the overall diameter of the tire by more than 3% compared to the original equipment. This preserves the integrity of the anti-lock braking system (ABS) and traction control systems calibrated at the factory.
