The 2018 Subaru Trucks Forester sits in the late fourth-generation Forester lineup, a period when Subaru balanced compact crossover practicality with all-weather confidence and everyday drivability. For many owners, that makes tire choice less about vintage authenticity and more about matching the vehicle’s trim level, wheel package, and intended road use. This Forester uses one of two primary radial sizes, 225/60R17 or 225/55R18, depending on sub-model. That means the real decision starts with confirming the exact trim and wheel diameter, then comparing available tire presentation and specifications within the correct size. A careful match helps preserve clearance, ride balance, and the look appropriate to the vehicle’s original wheel setup.
Which Tire Size Is Right for The 2018 Subaru Trucks Forester
The 2018 Subaru Trucks Forester uses two primary tire sizes, and the right one depends on the specific sub-model and wheel package. Both are radial metric sizes, but they mount on different rim diameters, so confirming whether the vehicle has 17-inch or 18-inch wheels is the first step before comparing tire options.
225/60R17 is a metric radial size with a 225-millimeter nominal section width, a 60-series profile, and a 17-inch rim diameter. On the 2018 Subaru Trucks Forester, this size applies to several sub-models equipped with 17-inch wheels, making wheel confirmation just as important as trim identification. Available product selection in this size includes a Travelstar UN106 radial with a narrow whitewall, which gives buyers a more distinctive sidewall presentation than a typical modern blackwall tire. This size is the one to evaluate when the vehicle retains its 17-inch wheel package and the goal is proper fitment within that setup.
Sub-model fitment matters on the 2018 Subaru Trucks Forester because tire size changes with wheel package and trim. Some versions use 17-inch radial fitment, while others use an 18-inch radial size, so identifying the exact sub-model is the cleanest way to start.
1
2018 Subaru Trucks Forester 2.0XT Premium
The 2018 Subaru Trucks Forester 2.0XT Premium uses the 225/55R18 radial size. Tire selection for this sub-model starts with confirming the 18-inch wheel setup, then choosing an appropriate tire within that size for appearance, road use, and overall fitment.
The 2018 Subaru Trucks Forester 2.0XT Touring also uses the 225/55R18 radial size. That keeps the focus on matching the tire to the 18-inch wheel package rather than choosing between multiple primary sizes for this particular trim.
The 2018 Subaru Trucks Forester 2.5i uses the 225/60R17 radial size. For this sub-model, tire selection should stay centered on the 17-inch wheel fitment and any product differences in sidewall treatment or specification within that size.
The 2018 Subaru Trucks Forester 2.5i Limited uses the 225/60R17 radial size. That means the main fitment task is confirming the vehicle still carries its 17-inch wheels before comparing available tires in that metric radial format.
The 2018 Subaru Trucks Forester 2.5i Premium uses 225/60R17 radial tires. Buyers choosing for this sub-model should focus on staying within the correct 17-inch fitment and checking wheel condition, clearance, and tire specifications before replacement.
2018 Subaru Trucks Forester 2.5i Premium Black Edition Pkg.
The 2018 Subaru Trucks Forester 2.5i Premium Black Edition Pkg. uses the 225/55R18 radial size. That places this version with the 18-inch-wheel Forester trims, where correct diameter and trim-specific fitment matter more than broad model-level assumptions.
The 2018 Subaru Trucks Forester 2.5i Touring uses the 225/55R18 radial size. Selecting tires here begins with the 18-inch wheel requirement, followed by a careful check of the actual wheel setup if the vehicle has been altered from stock.
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 2018 Subaru Trucks Forester Tires for Sale
Available product choice centers on 225/60R17, where a Travelstar UN106 radial is offered with a narrow whitewall sidewall treatment. That gives buyers something to compare beyond size alone, especially when appearance matters alongside basic fitment.
These FAQs focus on the two tire sizes used on the 2018 Subaru Trucks Forester, how trim level affects fitment, and what to check when comparing wheel diameter, product style, and road-use readiness.
Tire Size & Fitment
What tire size fits a 2018 Subaru Trucks Forester?
A 2018 Subaru Trucks Forester uses either 225/55R18 or 225/60R17, depending on the sub-model. Both are radial metric tire sizes, but they are not interchangeable primary fitments because they mount on different wheel diameters and correspond to different Forester configurations.
The most important step is identifying the exact trim and confirming the wheel size currently on the vehicle. A Forester that left the factory with 17-inch wheels should stay centered on 225/60R17 unless the wheel package has been changed, while trims with 18-inch wheels should be matched to 225/55R18.
What size rim does a 2018 Subaru Trucks Forester use?
The 2018 Subaru Trucks Forester uses either a 17-inch or 18-inch rim, depending on sub-model. The 225/60R17 tire size belongs with a 17-inch wheel, while the 225/55R18 tire size belongs with an 18-inch wheel.
Wheel diameter should be confirmed before ordering replacement tires, especially on a used Forester that may have had wheels changed by a previous owner. Checking the size stamped on the tire sidewall and verifying the actual wheel diameter helps avoid choosing a tire that matches the model name but not the vehicle’s present setup.
Do all 2018 Subaru Trucks Forester sub-models use the same tire size?
No, 2018 Subaru Trucks Forester sub-models do not all use the same tire size. Some trims, including the 2.0XT Premium, 2.0XT Touring, 2.5i Premium Black Edition Pkg., and 2.5i Touring, use 225/55R18, while the 2.5i, 2.5i Limited, and 2.5i Premium use 225/60R17.
That difference means trim identification is just as important as knowing the model year and model name. Choosing by Forester alone can lead to the wrong rim diameter, so it helps to confirm the exact sub-model and compare that against the wheels currently installed before making a final tire selection.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 Subaru Trucks Forester?
Start with the correct primary size for the exact sub-model, since the 2018 Subaru Trucks Forester uses either 225/60R17 or 225/55R18. Both are radial fitments, so the main decision is less about construction type and more about matching the vehicle’s wheel diameter, trim, and intended use.
Once size is confirmed, compare details that affect how the tire suits the vehicle, such as sidewall appearance, load specification, and wheel compatibility. A Forester used mainly for everyday road driving may call for a different presentation than one whose owner wants a more distinctive look, so correct fitment should come first and cosmetic preference second.
What sidewall styles are available for 2018 Subaru Trucks Forester tires?
A narrow whitewall sidewall style is available in 225/60R17 for the 2018 Subaru Trucks Forester. That option appears on a Travelstar radial, giving this otherwise modern fitment a more noticeable appearance than a plain contemporary sidewall treatment.
Sidewall style should still be considered within the limits of the correct tire size and wheel diameter for the sub-model. A whitewall can change the visual character of the Forester, but it does not override the need to confirm 17-inch fitment, load suitability, and overall compatibility with the vehicle’s current wheel setup.
What tire series are available for the 2018 Subaru Trucks Forester?
Within the currently represented product assortment for the 2018 Subaru Trucks Forester, the 225/60R17 size is available in the Travelstar UN106 series. That means series selection is not broad here, and the more important comparison point is whether that size and specification match the Forester’s exact trim and wheel package.
A tire series can still matter because it helps distinguish product character and sidewall presentation within a correct fitment. Even when only one series is in view, buyers should still compare the full specification, including size, load figure, and rim relationship, rather than selecting by series name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Subaru Trucks Forester?
For a period-style 2018 Subaru Trucks Forester, the starting point is the correct original-size format for the exact sub-model: either 225/60R17 or 225/55R18. Since this is a modern-era radial application, keeping the right size and wheel diameter usually matters more to appearance than chasing a dramatically different construction style.
A buyer who wants a more distinctive visual presentation can look at sidewall treatment within the correct size, especially in 225/60R17 where a narrow whitewall is available. If originality matters closely, compare the vehicle against period photos, window-sticker documentation, or marque-specific references before choosing a non-standard sidewall look.
Does correct tire fitment matter for a 2018 Subaru Trucks Forester restoration?
Yes, correct tire fitment matters on a 2018 Subaru Trucks Forester restoration or refurbishment because the model uses two different wheel-and-tire combinations across its sub-model range. Using the wrong diameter can change the visual stance and separate the finished vehicle from the trim-specific setup it was meant to carry.
Fitment also affects practicality, since the tire has to match the wheel already on the vehicle and work within normal clearance limits. Even on a newer collector-oriented project, checking trim, wheel diameter, and tire size helps keep the result visually coherent and mechanically sensible rather than simply close enough.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Subaru Trucks Forester?
Yes, modifications can affect tire fitment on a 2018 Subaru Trucks Forester. Wheel swaps, suspension changes, altered ride height, or body modifications can change the space available for the tire and may also change whether the existing wheel diameter still matches the size you expect for a given sub-model.
A modified Forester should be checked as an actual vehicle, not assumed to follow trim-based fitment alone. Measuring wheel diameter, confirming wheel width, and inspecting steering and fender clearance are sensible steps before replacing tires, especially if the vehicle no longer sits on the wheel-and-suspension combination it originally used.
What should I inspect before driving a 2018 Subaru Trucks Forester on new tires?
Before driving a 2018 Subaru Trucks Forester on new tires, inspect wheel condition, verify that all four tires are the correct size for the vehicle’s wheel package, and confirm inflation is appropriate for the installed tire. It also helps to look over the valve stems, check for uneven wear signs, and make sure nothing is rubbing at full steering lock.
A short road test should be paired with another quick visual check afterward to catch any early clearance or seating issues. Any Forester that has sat for long periods or changed owners recently also deserves a look at alignment-related wear patterns and overall suspension condition before regular highway use resumes.
How often should tires on a 2018 Subaru Trucks Forester be inspected?
Tires on a 2018 Subaru Trucks Forester should be inspected regularly, not just when tread looks low. A monthly check is a practical routine for pressure, visible damage, and irregular wear, and an additional inspection makes sense before longer drives, seasonal weather changes, or any trip that will put sustained highway miles on the vehicle.
Inspection should include the sidewalls, tread face, and shoulder areas, along with a look for cuts, bulges, cracking, and slow air loss. Even a relatively modern vehicle can develop fitment or condition issues after pothole impacts, curb contact, or wheel changes, so routine checks help catch problems before they become drivability concerns.
