Owners of the 2011 Ford Explorer XLT often appreciate the blend of capability and comfort this model offers, but selecting the correct rolling stock is essential for safety, performance, and longevity. The tire size for this specific trim is not merely a cosmetic choice; it dictates speedometer accuracy, load capacity, and handling dynamics. Understanding the specifications provided by Ford ensures that replacements meet the original engineering intent while accommodating potential upgrades.
Standard OEM Specifications
For the base 2011 Ford Explorer XLT, the recommended tire size is P245/70R17. This metric indicates a tire with a cross-section width of 245 millimeters, an aspect ratio of 70% (where the sidewall height is 70% of the width), and a wheel diameter of 17 inches. This specific footprint was chosen by Ford engineers to balance on-road comfort with the moderate off-road expectations of the Explorer lineup, providing a cushion against road imperfections while maintaining reasonable fuel efficiency.
Load Index and Speed Rating
Beyond the width and diameter, the load index and speed rating are critical identifiers found on the tire’s sidewall. The 2011 Explorer XLT typically utilizes a load index of 100 or 102, which corresponds to a maximum load capacity of 1,800 or 1,874 pounds per tire. The speed rating is usually an "S," indicating a maximum speed capability of 112 mph. Exceeding these ratings compromises safety and may lead to premature wear or failure under stress.
Wheel Compatibility and Fitment
Ensuring proper fitment involves more than matching the diameter; backspacing and offset must be considered to avoid interference with the suspension components or brake calipers. The 2011 Explorer XLT was designed to accept wheels with a 6.5-inch to 7.5-inch width range. Installing a wheel that is too narrow can cause the tire to bulge, while a wheel that is too wide may stretch the sidewall, increasing the risk of blowout.
Performance and Handling Implications
The tall-profile sidewalls associated with the P245/70R17 size contribute significantly to the ride quality of the 2011 Explorer XLT. This section height absorbs road noise and minor irregularities, which is beneficial for family-oriented driving on long highways. However, this comfort comes with a trade-off in handling; the increased unsprung weight and flexible sidewalls can lead to more body roll during aggressive cornering compared to lower-profile tires found on sport-oriented vehicles.
