The 2011 Ford Trucks F-150 STX sits in a generation of F-150 known for everyday usability, broad trim variation, and a strong following among owners who still expect real truck capability. On the STX, tire fitment is not a one-size question, because this model uses four primary radial sizes across 4x2 and 4x4 configurations on either 17-inch or 18-inch wheels. That makes wheel diameter and drivetrain configuration the first step before comparing available tire choices. Once the correct size is confirmed, the decision shifts toward load capacity, rim-width compatibility, and whether an all-terrain raised white letter look matches how the truck is used.
Which Tire Size Is Right for The 2011 Ford Trucks F-150 STX
The 2011 Ford Trucks F-150 STX uses four primary tire sizes, and they vary by sub-model and wheel diameter. The first thing to confirm is whether the truck is a 4x2 or 4x4 and whether it is on 17-inch or 18-inch wheels. Once that is settled, the real comparison becomes choosing the right radial tire within that size, with attention to load rating, rim-width compatibility, and the truck's intended road or trail use.
255/65R17 is a metric radial size that uses a 255-millimeter nominal section width, a 65-series profile, and a 17-inch rim diameter. On the 2011 Ford Trucks F-150 STX, it is one of the 4x2 fitments and keeps the truck in a modern radial sizing format familiar to late-model pickup owners. Available choices in this size include a BFGoodrich All-Terrain T/A KO2 with raised white letter sidewall styling. This size is worth considering when the truck already runs 17-inch wheels and the goal is to stay with the proper 4x2 fitment range rather than moving to a different wheel diameter.
265/60R18 is a metric radial size with a 265-millimeter nominal section width, a 60-series aspect ratio, and an 18-inch rim diameter. For the 2011 Ford Trucks F-150 STX, this is an 18-inch fitment used on the 4x2 configuration, so it should not be treated as interchangeable with the 17-inch options. Its sizing reflects a lower-profile look than the taller 17-inch 4x4 alternative while remaining a truck-oriented radial format. Choosing this size starts with confirming that the truck is a 4x2 on 18-inch wheels and that wheel width and overall clearance remain consistent with that setup.
265/70R17 is a metric radial size that combines a 265-millimeter nominal section width with a 70-series profile on a 17-inch rim. On the 2011 Ford Trucks F-150 STX, it is one of the 4x4 fitments and represents a taller-profile 17-inch radial than the 4x2 255/65R17 option. Product choices in this size include BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls, and load capacity varies meaningfully between the available versions. This size deserves careful attention when the truck sees hauling, towing, or off-pavement use, since the exact tire specification matters as much as the size itself.
275/65R18 is a metric radial size with a 275-millimeter nominal section width, a 65-series profile, and an 18-inch rim diameter. For the 2011 Ford Trucks F-150 STX, this size is used on the 4x4 configuration and pairs a wider section width with an 18-inch wheel. Available products include a BFGoodrich All-Terrain T/A KO2 with raised white letter styling and a rim-width range that differs from the 17-inch fitments. This size is the one to evaluate when a 4x4 STX already wears 18-inch wheels and the owner wants to preserve that wheel and tire relationship rather than converting to another setup.
Sub-model fitment matters on the 2011 Ford Trucks F-150 STX because the tire sizes differ between 4x2 and 4x4 trucks. Confirming the exact drivetrain and wheel diameter comes first, since each configuration uses its own 17-inch or 18-inch radial fitment.
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2011 Ford Trucks F-150 STX 4x2
The 2011 Ford Trucks F-150 STX 4x2 uses 17-inch or 18-inch radial fitments distinct from the 4x4 model. Tire selection here starts with confirming which wheel diameter is on the truck, then comparing the available tire's load rating, rim-width range, and intended use.
The 2011 Ford Trucks F-150 STX 4x4 uses its own pair of radial tire sizes, separate from the 4x2 setup. That means the buyer should verify both the 4x4 configuration and actual wheel diameter before narrowing down tire choice, especially when comparing taller 17-inch and 18-inch all-terrain options.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2011 Ford Trucks F-150 STX Tires for Sale
Available products for the 2011 Ford Trucks F-150 STX focus on BFGoodrich All-Terrain T/A KO2 radials, with raised white letter styling in the supported 17-inch and 18-inch fitments. The main comparison points are size, load capacity, weight, and rim-width range.
These FAQs for the 2011 Ford Trucks F-150 STX focus on the fitment questions that matter most: which tire size matches the truck, how 4x2 and 4x4 setups differ, what product choices exist, and what to inspect before regular road use.
Tire Size & Fitment
What tire size fits a 2011 Ford Trucks F-150 STX?
The 2011 Ford Trucks F-150 STX uses four primary tire sizes: 255/65R17, 265/60R18, 265/70R17, and 275/65R18. All of them are radial sizes, and they do not apply across every STX the same way because 4x2 and 4x4 trucks use different fitments.
The right starting point is confirming whether the truck is a 4x2 or 4x4 and whether it has 17-inch or 18-inch wheels. That matters more here than brand preference, because choosing the wrong rim diameter or the wrong sub-model fitment can send the tire search in the wrong direction immediately.
What size rim does a 2011 Ford Trucks F-150 STX use?
A 2011 Ford Trucks F-150 STX uses either 17-inch or 18-inch rims, depending on the tire size and sub-model. The 255/65R17 and 265/70R17 sizes use 17-inch rims, while the 265/60R18 and 275/65R18 sizes use 18-inch rims.
Wheel diameter should be confirmed at the truck before selecting tires, especially on used pickups that may have had wheel swaps over the years. After diameter is confirmed, wheel width still matters because the available products carry their own rim-width ranges, and that affects whether a given tire is appropriate for the existing wheel.
Why does the 2011 Ford Trucks F-150 STX have more than one tire size?
The 2011 Ford Trucks F-150 STX has more than one tire size because fitment changes between the 4x2 and 4x4 sub-models and also between 17-inch and 18-inch wheel setups. That creates four valid primary sizes instead of one universal fitment for every STX.
This means tire shopping should begin with the truck's actual configuration rather than the STX name alone. A 4x2 on 17-inch wheels follows a different path than a 4x4 on 18-inch wheels, and that distinction affects not only tire size but also the product choices and load specifications worth comparing.
Choosing the Right Tire
What should I consider when choosing a tire for a 2011 Ford Trucks F-150 STX?
Start with the exact tire size that matches the truck's sub-model and wheel diameter, since the 2011 Ford Trucks F-150 STX uses four different radial fitments. After that, compare the tire's intended use, load capacity, rim-width compatibility, and whether the construction and tread style suit daily driving, hauling, or mixed on-road and off-road use.
Available options in these sizes lean toward all-terrain truck tires, so the decision is less about changing construction and more about choosing the right specification within the correct size. It is also smart to confirm whether the truck still has its original wheel setup, because modified wheels can change what tire dimensions make practical sense.
What sidewall styles are available for 2011 Ford Trucks F-150 STX tires?
The available products for the 2011 Ford Trucks F-150 STX use RWL sidewalls, meaning raised white letters. That gives the truck a more traditional light-truck appearance than a plain black sidewall and is a visible styling detail that many owners notice immediately.
Sidewall style does not change the need to match the correct size, rim diameter, and vehicle configuration first. Once fitment is confirmed, raised white letters become an appearance choice that can either reinforce a more aggressive all-terrain look or stand out more than some owners want on an otherwise stock STX.
What brands offer tires for the 2011 Ford Trucks F-150 STX?
BFGoodrich is represented in the available tire choices for the 2011 Ford Trucks F-150 STX, specifically through the All-Terrain T/A KO2 line. The currently covered options stay within the truck's supported radial sizes and focus on light-truck all-terrain applications rather than mixing in unrelated passenger-car products.
Even with one visible brand family, there is still more to compare than the brand name alone. Size, load rating, weight, and wheel-width compatibility can differ across individual fitments, so the best use of the product grid is to compare the tire's actual specifications against how the truck is equipped and used.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Ford Trucks F-150 STX?
A period-style approach for a 2011 Ford Trucks F-150 STX starts by staying with the truck's correct 4x2 or 4x4 tire size and matching its 17-inch or 18-inch wheel setup. Because this is a modern truck-era fitment, the emphasis is less about vintage construction and more about keeping the overall stance and wheel-to-tire relationship appropriate to the STX.
An all-terrain radial with raised white letters can support a truck-oriented appearance that feels at home on this generation of F-150. Owners chasing exact appearance details should still compare the current setup with original vehicle documentation or marque-specific references, especially if the truck has changed wheels at some point.
How does tire construction affect the appearance of a restored 2011 Ford Trucks F-150 STX?
On a 2011 Ford Trucks F-150 STX, tire construction is straightforward because the primary fitments are radial. That means appearance differences are shaped more by size, sidewall treatment, and tread character than by choosing between bias-ply and radial construction, which is a much bigger issue on earlier collector vehicles.
The visible effect comes from how the tire fills the wheel opening and whether details such as raised white letters suit the truck's presentation. Keeping the correct wheel diameter and matching the proper STX sub-model fitment usually does more for the truck's finished look than chasing cosmetic details on an incorrect size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Ford Trucks F-150 STX?
Yes, modifications can affect tire fitment on a 2011 Ford Trucks F-150 STX even when the tire size looks close to stock. Aftermarket wheels, changes in wheel width or offset, suspension lifts, leveling kits, lowering, or body alterations can all change how much room the tire has during steering and suspension travel.
That is why the truck's actual setup matters as much as the original STX fitment. A tire that matches the factory size code still needs enough clearance at the fenders, frame, and suspension, and any wheel change should be checked against the tire's approved rim-width range before the new combination goes into regular use.
What should I inspect before driving a 2011 Ford Trucks F-150 STX on new tires?
Before driving a 2011 Ford Trucks F-150 STX on new tires, inspect wheel diameter and width, confirm lug hardware is correct, and make sure the tires are inflated to an appropriate pressure for the application. It is also worth checking for rubbing at full steering lock and looking over the suspension and steering components for worn parts.
A road-ready check should include tread and sidewall condition on any remaining older tires, valve stem condition, and signs of uneven wear that could point to alignment or suspension issues. On a truck, those details matter because they can affect stability, tire life, and how confidently the new tires perform under load.
How often should tires on a 2011 Ford Trucks F-150 STX be inspected?
Tires on a 2011 Ford Trucks F-150 STX should be inspected regularly, not just when tread looks low. A quick visual check before routine driving and a more thorough inspection at service intervals helps catch uneven wear, cuts, bulges, cracking, punctures, or slow air loss before they become larger problems.
Truck owners should also pay attention after towing, hauling, off-pavement use, or any curb impact, since those conditions can stress both the tire and wheel. Keeping pressures consistent and watching for changes in ride feel or steering response can reveal an issue early, especially on all-terrain tires with heavier-duty construction.
