The 2018 Subaru Trucks Crosstrek sits in the modern small-crossover category, blending everyday utility with the higher ride height and all-weather character that drew many drivers to Subaru in the first place. For tire selection, this Crosstrek uses radial construction only, but fitment is not the same across the lineup. Base and Premium models use 225/60R17, while the Limited moves to 225/55R18. That means the real decision starts with confirming the exact sub-model and wheel diameter, then choosing a tire that matches the intended look and road use. On a newer vehicle like this, wheel changes and replacement-wheel swaps deserve an especially careful fitment check.
Which Tire Size Is Right for The 2018 Subaru Trucks Crosstrek
The 2018 Subaru Trucks Crosstrek uses two primary tire sizes, and the correct one depends on sub-model and wheel diameter. Base and Premium models use a 17-inch fitment, while the Limited uses an 18-inch fitment, so the first step is confirming which wheels are actually on the vehicle before selecting a tire.
In 225/55R18, the 225 is the nominal section width in millimeters, 55 is the aspect ratio, R marks radial construction, and 18 is the rim diameter in inches. This is also a modern radial fitment, but it belongs to the 18-inch wheel setup used on the 2018 Subaru Trucks Crosstrek Limited. The slightly different profile means it should not be confused with the 17-inch fitment simply because the section width matches. This size is the one to focus on when the vehicle is a Limited or when the Crosstrek has its original-style 18-inch wheel package.
Sub-model fitment matters on the 2018 Subaru Trucks Crosstrek because the lineup does not share one universal tire size. The correct tire depends on whether the vehicle is a Base, Premium, or Limited and on whether its current wheels still match that original sub-model setup.
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2018 Subaru Trucks Crosstrek Base
The 2018 Subaru Trucks Crosstrek Base uses the 225/60R17 radial fitment on a 17-inch wheel. Tire selection for this sub-model centers on confirming the wheel size and then choosing a tire that suits everyday road use and the preferred sidewall appearance.
The 2018 Subaru Trucks Crosstrek Limited uses the 225/55R18 radial fitment on an 18-inch wheel. That makes wheel-diameter confirmation especially important, since moving between 17-inch and 18-inch setups changes the correct tire size even though both fitments share the same nominal width.
The 2018 Subaru Trucks Crosstrek Premium uses the same 225/60R17 radial fitment as the Base model. Buyers comparing tires for this sub-model should stay focused on 17-inch compatibility first, then sort through available product differences such as sidewall treatment and other tire characteristics.
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 Crosstrek Tires for Sale
Available product choice for the 2018 Subaru Trucks Crosstrek currently centers on 225/60R17, including a Travelstar UN106 radial with a narrow whitewall. That gives buyers a chance to compare not just size and construction, but also sidewall presentation and rim-width compatibility.
Common questions for the 2018 Subaru Trucks Crosstrek usually come down to identifying the right tire size by sub-model, confirming 17-inch versus 18-inch wheel fitment, and understanding how product style and vehicle condition affect the final choice.
Tire Size & Fitment
What tire size fits a 2018 Subaru Trucks Crosstrek?
The 2018 Subaru Trucks Crosstrek uses two tire sizes: 225/60R17 and 225/55R18. Base and Premium models use 225/60R17, while the Limited uses 225/55R18. Both are radial tire fitments, but they are tied to different wheel diameters.
The key step is matching the tire size to the exact sub-model and to the wheels currently on the vehicle. A Crosstrek that has had its wheels changed since new may no longer match its original trim-level fitment, so checking the existing wheel diameter before ordering replacement tires helps avoid a mismatch.
What size rim does a 2018 Subaru Trucks Crosstrek use?
A 2018 Subaru Trucks Crosstrek uses either a 17-inch or 18-inch rim, depending on sub-model. The 225/60R17 tire size pairs with a 17-inch rim, and the 225/55R18 tire size pairs with an 18-inch rim.
Rim diameter should be confirmed before anything else because the two Crosstrek tire sizes are not interchangeable across wheel diameters. Even though both sizes share the same 225-millimeter nominal width, the tire must match the wheel's actual diameter, and that should be verified directly on the vehicle if replacement wheels have ever been installed.
Do all 2018 Subaru Trucks Crosstrek sub-models use the same tire size?
No. The 2018 Subaru Trucks Crosstrek does not use one tire size across every sub-model. Base and Premium models use 225/60R17, while the Limited uses 225/55R18, so trim level changes the correct tire size.
That difference matters because the two fitments use different rim diameters and should not be treated as the same replacement choice. Anyone shopping for tires should confirm the sub-model first, then confirm the wheels actually on the vehicle, especially if the Crosstrek was purchased used or has been updated with aftermarket or take-off wheels.
Choosing the Right Tire
What should I consider when choosing a 225/60R17 tire for a 2018 Subaru Trucks Crosstrek?
Start with the basics: the tire must be 225/60R17, radial, and suited to a 17-inch wheel. For the 2018 Subaru Trucks Crosstrek, this size applies to Base and Premium models, so the first priority is confirming that the vehicle still uses its 17-inch wheel setup.
Once the fitment is confirmed, compare the available tire's sidewall style, tire series, load figure, and wheel specification. A Travelstar UN106 option is available in this size with a narrow whitewall, which may appeal to buyers who want something more distinctive than a plain modern sidewall on an otherwise contemporary crossover.
What sidewall styles are available for 2018 Subaru Trucks Crosstrek tires?
For the 2018 Subaru Trucks Crosstrek, the currently available sidewall style in the applicable product range is a narrow whitewall in 225/60R17. That creates a different visual effect than the plain black sidewall many buyers expect in a modern crossover tire.
Sidewall appearance is worth considering after the correct size and wheel diameter are confirmed. A narrow whitewall can change the overall presentation of the vehicle, so the choice comes down to whether the Crosstrek is being kept strictly contemporary in look or given a more individualized visual treatment within the proper fitment.
What tire series are available for the 2018 Subaru Trucks Crosstrek?
Within the current product selection for the 2018 Subaru Trucks Crosstrek, the available tire series is the Travelstar UN106 in 225/60R17. It is a radial tire and appears with a narrow whitewall sidewall treatment rather than a plain blackwall-style presentation.
Series matters because it helps distinguish one product's character from another even when the tire size is the same. For a Crosstrek owner, that means looking beyond the basic size code and comparing the series, sidewall appearance, and wheel specification together so the replacement tire matches both the vehicle setup and the desired look.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Subaru Trucks Crosstrek?
A period-style approach on a 2018 Subaru Trucks Crosstrek still begins with the correct modern tire size for the exact sub-model: 225/60R17 for Base and Premium or 225/55R18 for Limited. Since this is a late-model vehicle with radial fitment, the styling decision is more about sidewall presentation than vintage construction.
The available 225/60R17 Travelstar UN106 with a narrow whitewall offers a more distinctive visual treatment than a typical modern sidewall. That can work for an owner who wants a custom appearance, but anyone trying to preserve a specific showroom-era look should compare tire appearance against original photos, brochures, or marque-specific references.
How does tire construction affect the appearance of a restored 2018 Subaru Trucks Crosstrek?
On the 2018 Subaru Trucks Crosstrek, tire construction is straightforward because the primary fitments are radial. That means the appearance difference comes less from bias-ply versus radial construction and more from choices such as sidewall style, profile, and the wheel diameter tied to the correct sub-model.
Visual balance can change noticeably between the 17-inch and 18-inch setups, so keeping the proper size for the vehicle matters to the finished look. Sidewall treatment also plays a role, especially where a narrow whitewall option is available, making tire choice part of the Crosstrek's overall presentation rather than just a maintenance item.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Subaru Trucks Crosstrek?
Yes. Modifications can affect tire fitment on a 2018 Subaru Trucks Crosstrek, especially if the vehicle has aftermarket wheels, suspension changes, or a different wheel diameter than its original sub-model used. Those changes can alter which tire size belongs on the vehicle and how much clearance is available.
A Crosstrek with replacement wheels should have its actual rim diameter and width checked before new tires are chosen. Suspension alterations, alignment changes, or body modifications can also influence clearance at full steering lock and over bumps, so fitment should be verified on the vehicle as it sits now rather than assumed from trim level alone.
What should I inspect before driving a 2018 Subaru Trucks Crosstrek on new tires?
Before driving a 2018 Subaru Trucks Crosstrek on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and check that inflation pressure is set correctly for the new installation. It also helps to look over the valve stems and make sure the tires seat and hold air properly.
A short follow-up inspection after initial driving is a smart habit, especially on a vehicle that may have had wheel changes or curb contact in the past. Watch for uneven clearance, rubbing during turns, vibration, or unusual wear patterns, since those signs can point to alignment, suspension, or wheel-fitment issues that should be corrected early.
How often should tires on a 2018 Subaru Trucks Crosstrek be inspected?
Tires on a 2018 Subaru Trucks Crosstrek should be inspected regularly, not just when they look worn. Pressure, tread condition, cuts, sidewall damage, and signs of uneven wear all deserve routine attention, and a visual check before longer trips is a sensible habit for a vehicle used in mixed daily driving conditions.
Frequent inspection becomes even more important if the Crosstrek sits for long periods or uses wheels and tires different from its original setup. Changes in wear pattern, recurring air loss, or new rubbing marks can reveal fitment or maintenance issues early, before they become more expensive or inconvenient to address.
