The 2009 Ford Trucks Flex arrived with a long, low wagon-like profile and three-row practicality that set it apart from more conventional crossovers of its era. Its design leaned heavily on stance and proportion, which makes proper tire sizing especially important to the way the vehicle looks and drives. Tire fitment on the 2009 Ford Trucks Flex is entirely radial, but the correct size depends on the exact sub-model and wheel package, with 17-, 18-, 19-, and 20-inch rim diameters in play. That means the real decision is not just choosing a tire, but confirming the right wheel diameter first and then comparing available sidewall treatments, brands, and tire series where applicable.
Which Tire Size Is Right for The 2009 Ford Trucks Flex
The 2009 Ford Trucks Flex uses four different tire sizes, and they vary by sub-model and wheel package. Before choosing a tire, the first step is confirming the exact Flex trim and actual rim diameter on the vehicle, since this application spans 17-, 18-, 19-, and 20-inch wheels. Once that is settled, the decision becomes choosing the right radial tire within the correct size and, where available, comparing brand, series, and sidewall style.
A 235/55R19 tire uses a 235-millimeter section width, a 55-series aspect ratio, radial construction, and a 19-inch rim diameter. On the 2009 Ford Trucks Flex, this is one of the trim-specific radial fitments and should be matched to the vehicle's actual wheel setup rather than chosen by appearance alone. The size follows a modern metric format that most buyers will recognize, making it easier to compare dimensions against what is currently on the vehicle. This is the right size to evaluate when the Flex already has 19-inch wheels and the goal is to stay with the intended overall fitment profile.
A 255/45R20 tire is a wider metric radial size with a 255-millimeter section width, a 45-series profile, and a 20-inch rim diameter. On the 2009 Ford Trucks Flex, this size is tied to specific sub-model and wheel-package combinations, so wheel diameter confirmation matters before looking at tire choices. Available options in this size include BFGoodrich, Nitto, and Pro-Trac, with Blackwall, raised white letter, and Redline sidewall treatments across different tire series. This size is the one to consider when the Flex is equipped with 20-inch wheels and the buyer wants to compare both performance-oriented styling and sidewall presentation.
A 235/60R17 tire combines a 235-millimeter section width with a 60-series aspect ratio, radial construction, and a 17-inch rim diameter. For the 2009 Ford Trucks Flex, this is a trim-specific fitment rather than a universal size across the model range, so it should be matched to the exact sub-model and wheel diameter already on the vehicle. The metric radial format gives a straightforward read on width, profile, and rim size without the vintage sizing conventions seen on older vehicles. This size deserves attention when maintaining an original wheel setup on a Flex that came with 17-inch rims.
A 235/60R18 tire uses the same 235-millimeter nominal width and 60-series profile as the 17-inch version, but it is built for an 18-inch rim. On the 2009 Ford Trucks Flex, this size appears across more than one sub-model, which makes it an important fitment to verify on vehicles that may have had wheel changes over time. Its modern metric radial sizing is easy to interpret, but the key difference is still the wheel diameter rather than the naming convention. This is the size to review when the Flex carries 18-inch wheels and the goal is to preserve the intended fitment for that setup.
Tire fitment on the 2009 Ford Trucks Flex varies by sub-model, and some trims use more than one wheel-and-tire combination. Checking the exact trim matters because the Flex spans four different primary tire sizes, each tied to a specific rim diameter.
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2009 Ford Trucks Flex Limited
The 2009 Ford Trucks Flex Limited uses either a 235/55R19 radial or a 255/45R20 radial, depending on the wheel package on the vehicle. Selection starts with confirming whether the Limited has 19-inch or 20-inch wheels, then comparing available tires within that exact size.
The 2009 Ford Trucks Flex SE uses either a 235/60R17 radial or a 235/60R18 radial. That makes wheel diameter the key fitment check before replacement, especially on vehicles that may no longer wear their original wheel setup.
The 2009 Ford Trucks Flex SEL uses either a 235/60R18 radial or a 255/45R20 radial, so trim name alone does not settle the tire choice. The practical step is confirming the actual wheel diameter first, then selecting the right radial tire for that configuration.
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 2009 Ford Trucks Flex Tires for Sale
Available product choice centers on 255/45R20, where BFGoodrich, Nitto, and Pro-Trac offer radial options across several tire series and sidewall styles. Buyers can compare Blackwall, raised white letter, and Redline presentation along with rim-width specifications and related product details.
These FAQs focus on the exact tire sizes used on the 2009 Ford Trucks Flex, how trim level and wheel diameter affect fitment, and what to consider when comparing available radial tire options for appearance and road use.
Tire Size & Fitment
What tire size fits a 2009 Ford Trucks Flex?
The 2009 Ford Trucks Flex uses four possible tire sizes: 235/60R17, 235/60R18, 235/55R19, and 255/45R20. All of them are radial sizes, and the correct one depends on the exact sub-model and wheel package rather than the model name alone.
The most important step is checking the actual wheel diameter on the vehicle before ordering tires. A Flex with 17-inch wheels needs a different tire than one with 18-, 19-, or 20-inch wheels, even when the trim name is similar. If the vehicle has had aftermarket wheels installed, verify the current setup instead of relying only on trim designation.
What size rim does a 2009 Ford Trucks Flex use?
A 2009 Ford Trucks Flex can use 17-inch, 18-inch, 19-inch, or 20-inch rims, depending on the sub-model and wheel package. Those rim diameters correspond to the four primary tire sizes used on this vehicle, so the final number in the tire size must match the wheel diameter exactly.
That means a 235/60R17 belongs on a 17-inch rim, while a 255/45R20 belongs on a 20-inch rim. Tire width and profile can vary, but the rim diameter cannot be mixed across sizes. Checking the wheel itself is especially important on a used Flex, since wheels are often changed after the vehicle leaves its original configuration.
Do all 2009 Ford Trucks Flex sub-models use the same tire size?
No, the 2009 Ford Trucks Flex sub-models do not all use the same tire size. The SE uses 235/60R17 or 235/60R18, the SEL uses 235/60R18 or 255/45R20, and the Limited uses 235/55R19 or 255/45R20.
This variation means trim level is part of the fitment decision, but it is still wise to confirm what is actually on the vehicle. Some trims overlap on one size while differing on another, and wheel changes can blur the original setup. Matching the tire to the current wheel diameter is the clearest way to avoid ordering the wrong size.
Choosing the Right Tire
What should I consider when choosing a 255/45R20 tire for a 2009 Ford Trucks Flex?
Start by confirming that the Flex actually uses the 255/45R20 size, since that fitment applies only to certain wheel-and-trim combinations. From there, compare construction, sidewall style, tire series, rim-width compatibility, and any available load or weight details that matter for how the vehicle will be used.
This size has the broadest product variety here, so the choice often comes down to appearance and intended character as much as basic fitment. Some owners may want a straightforward Blackwall look, while others may prefer raised white letter or Redline styling. Keep the wheel width in mind, and compare the replacement tire against the existing setup before making a final selection.
What sidewall styles are available for 2009 Ford Trucks Flex tires?
For the 255/45R20 fitment used on certain 2009 Ford Trucks Flex configurations, available sidewall styles include Blackwall, raised white letter, and Redline. Those options create noticeably different visual presentations even when the overall tire size stays the same.
Sidewall style does not change the need to match the correct tire size to the correct wheel diameter. It does, however, influence how the Flex looks, especially on a vehicle whose profile puts the wheel-and-tire package in plain view. Choosing between subtle and more pronounced sidewall treatments usually comes down to whether the goal is a cleaner modern appearance or a more expressive styling cue.
What brands offer tires for the 2009 Ford Trucks Flex?
In the available 255/45R20 fitment for the 2009 Ford Trucks Flex, tires are offered by BFGoodrich, Nitto, and Pro-Trac. Those brands appear across different tire series and sidewall treatments, giving buyers more than one approach within the same basic size.
Brand should be considered alongside the rest of the specification rather than by itself. A useful comparison includes the exact tire series, the sidewall style, and the wheel-width range where that detail is given. Once the correct size is confirmed, those distinctions help narrow the choice toward the tire that best matches the Flex's current wheels and the owner's appearance preferences.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Ford Trucks Flex?
A period-style choice for a 2009 Ford Trucks Flex starts with keeping the correct size for the trim and wheel package already on the vehicle. Because this is a modern radial application, the most relevant appearance decisions are usually wheel diameter, tire profile, and sidewall treatment rather than bias-ply versus radial construction.
For a more restrained original-era look, many owners stay with a Blackwall presentation in the proper size. If the Flex uses 255/45R20, raised white letter or Redline styling creates a more assertive visual effect. Exact originality questions are best checked against vehicle-specific sales literature, factory documentation, or model-specific enthusiast references before settling on a final appearance.
How does tire construction affect the appearance of a restored 2009 Ford Trucks Flex?
Tire construction is simpler on the 2009 Ford Trucks Flex than on many older collector vehicles because its primary fitments are all radial. That means the visual character is influenced more by the selected size, profile, and sidewall style than by a change between bias-ply and radial construction.
Appearance still matters, because the Flex has a strong side profile and the wheel opening visually frames the tire. A lower-profile 20-inch setup presents the vehicle differently than a 17- or 18-inch package, even when overall diameter stays close. Keeping the correct size for the wheel and trim is the foundation of a restoration-oriented look on this model.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Ford Trucks Flex?
Yes, modifications can affect tire fitment on a 2009 Ford Trucks Flex. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, or body modifications can all change the space available for the original tire sizes used on this vehicle.
A modified Flex should be checked for wheel diameter, wheel width, and clearance at the fender and steering components before replacement tires are chosen. Even when the tire size matches a known Flex fitment, the current setup may not mirror the original one. Looking at the tires already installed and measuring the wheels is a practical way to avoid a mismatch.
What should I inspect before driving a 2009 Ford Trucks Flex on new tires?
Before driving a 2009 Ford Trucks Flex on new tires, inspect the wheel condition, confirm the tire size matches the rim diameter, and make sure each tire is properly inflated. It is also smart to look over the valve stems, check for any visible rubbing points, and verify that lug hardware is in good condition.
A short, careful first drive helps reveal any vibration, steering pull, or clearance issue that was not obvious at installation. After that, recheck pressure and take another look for signs of contact near the inner fender, suspension, or steering components. Those steps matter even more if the Flex has non-original wheels or suspension changes.
How often should tires on a 2009 Ford Trucks Flex be inspected?
Tires on a 2009 Ford Trucks Flex should be inspected regularly, not just when tread appears worn. Frequent checks for air loss, uneven wear, cuts, bulges, and sidewall damage help catch problems early, especially on a vehicle that may see mixed family, highway, or seasonal use.
A visual inspection every month and before longer drives is a sensible routine for this type of vehicle. Pay particular attention after pothole impacts or any change in steering feel. If the Flex sits for extended periods, check for flat spotting and pressure loss before returning it to regular road use, since time and storage can affect tire condition as much as mileage.
