2020 Subaru Trucks Tire Fitment Guide

2020 Subaru Trucks vehicles use four sizes across three models: 245/60R18 and 245/50R20 for the Ascent, plus 225/60R17 and 225/55R18 for the Crosstrek and Forester. That means tire fitment is not shared across the full 2020 Subaru Trucks range. The available 225/60R17 product mounts on a 17-inch rim and uses a 6.5J wheel width.

The practical takeaway is that year and make alone are not enough for this lineup. You need to confirm both the model and the wheel diameter already on the vehicle before moving to any tire choice. Ascent owners are choosing between 18-inch and 20-inch fitments, while Crosstrek and Forester owners are choosing between 17-inch and 18-inch fitments.

On a 2020 Subaru Trucks tire, 245/60R18 is a metric radial size. The 245 is the nominal section width in millimeters, the 60 is the aspect ratio, the R means radial construction, and the 18 is the wheel diameter in inches. Within this year and make, that size belongs to the Ascent.

That code matters because it ties the tire to an 18-inch wheel, not to every 2020 Subaru Trucks model. A buyer comparing Ascent tires should first verify whether the vehicle is on the 18-inch setup or the 20-inch setup, since the two Ascent sizes are not interchangeable without matching the wheel diameter.

No. 2020 Subaru Trucks models do not share a single tire size across the whole lineup. Ascent uses 245/60R18 or 245/50R20, while Crosstrek and Forester use 225/60R17 or 225/55R18. Every size in this year and make is radial, but the dimensions and wheel diameters change by model and wheel package.

That split is important when you are starting with only the year and make. If you have a Crosstrek or Forester, the tire search narrows to 17-inch or 18-inch fitments. If you have an Ascent, the correct path is an 18-inch or 20-inch fitment. Checking the sidewall of the tire already on the vehicle is often the fastest confirmation.

2020 Subaru Trucks fitments are modern radial sizes, and the sidewall style currently represented here is a narrow whitewall in 225/60R17. That appearance is offered on a Travelstar radial for Crosstrek and Forester applications using 17-inch wheels. No sidewall-style spread appears across the other sizes in this year and make on this page.

For most 2020 Subaru applications, the main choice is correct size and wheel diameter rather than a period-authentic sidewall treatment. A narrow whitewall changes the look of a modern crossover more than it changes fitment, so buyers who want that styling effect should make sure the vehicle specifically uses 225/60R17 before considering it.

Travelstar is represented here for 2020 Subaru Trucks fitment in 225/60R17. That product is a radial tire in the UN106 series and comes as a narrow whitewall. It applies to Crosstrek and Forester models using 17-inch wheels.

Brand choice only matters after the size is confirmed, because the 2020 Subaru Trucks lineup splits across four different fitments. If your vehicle is an Ascent or if your Crosstrek or Forester uses 18-inch wheels, start by confirming the exact size on the vehicle so you are comparing products within the right diameter class first.

For 2020 Subaru Trucks vehicles, the difference is visual rather than dimensional when the tire size is the same. A narrow whitewall adds a contrasting sidewall accent, while a standard blackwall keeps a more contemporary factory-style appearance. The 225/60R17 fitment currently appears with a narrow whitewall option.

That means the decision comes down to the look you want once fitment is settled. On a modern Subaru crossover, a whitewall can create a distinctive custom or nostalgic touch, but it does not replace the need to match the exact metric size and wheel diameter. Always confirm the sidewall marking and wheel size together before making a final choice.

Rim width guidance appears here for 2020 Subaru Trucks in 225/60R17, where the available product uses a 6.5J rim width on a 17-inch wheel. That figure applies to that size and product combination, not automatically to the other 2020 Subaru Trucks sizes. The other fitments in this lineup use different wheel diameters and should be matched to their own wheel package.

When you are checking fitment, rim diameter is the first gate and rim width is the second. If your Crosstrek or Forester runs 225/60R17, a 17-inch wheel with the proper width is part of the equation. If your vehicle uses one of the 18-inch or 20-inch sizes, verify the wheel and tire as a set rather than assuming the same wheel specification carries across the lineup.

The 2020 Subaru Trucks fitments on this page are radial metric sizes, and the 225/60R17 example appears without a tube-type marking in its size designation. That points buyers toward a tubeless-style modern radial application rather than a vintage tube-type fitment. The key is to confirm the exact sidewall marking on the product you choose and the condition of the wheel it will mount on.

Modern crossover wheels are typically matched with tubeless radial tires, but the wheel itself still has to be clean, true, and suitable for the tire being installed. If you are replacing only one or two tires, have the installer inspect the valve stems and bead seats at the same time so the new tire is not compromised by aging wheel hardware.

A 2020 Subaru Trucks vehicle should be stored on a clean, dry surface away from direct sunlight, electric motors, welders, furnaces, and other ozone-producing equipment that can age rubber. Keep the tires properly inflated during storage and move the vehicle periodically if it sits for long stretches. Radials generally tolerate storage well, but long static periods can still create temporary flat-spotting or pressure loss.

Short collector-style storage intervals are usually uncomplicated if the tires stay clean, inflated, and out of harsh environmental exposure. For longer seasonal storage, many owners either roll the vehicle occasionally or reduce load on the tires with stands placed correctly under the chassis. That approach helps preserve casing shape and keeps the tire ready for smoother road manners when the vehicle returns to service.

Tires on a 2020 Subaru Trucks vehicle should be judged by age and condition as much as by tread depth. A useful collector-vehicle rule is to begin careful evaluation around five to seven years and to give serious replacement consideration as tires approach about ten years from the DOT date code, even if mileage is low. Heat cycles, climate, storage, and underinflation can age a tire before the tread appears worn out.

That matters especially on vehicles that are driven irregularly, because a tire can look serviceable at a glance while the rubber has hardened or developed age cracking. Check the DOT date code, inspect the sidewalls in good light, and consider replacement if the tire has become stiff, cracked, or unreliable at holding pressure. Age is often the deciding factor long before tread wear on low-use vehicles.

Tires on a 2020 Subaru Trucks vehicle should be inspected before every drive and again before any longer highway outing. Look for sidewall cracking, punctures, bulges, uneven tread wear, and signs of chronic pressure loss. Pressure should be checked cold, and any tire that has been sitting for an extended period deserves a closer visual and hands-on inspection before the vehicle returns to regular use.

Frequent inspection is one of the simplest ways to prevent a small problem from becoming a roadside failure. It also helps you catch alignment or suspension issues early, since unusual wear patterns often show up in the tire first. If the vehicle has a spare, inspect that as well so it is actually usable when needed rather than aging unnoticed in the cargo area.

2020 Subaru Trucks tires in these fitments are modern radial designs, which are well suited to normal highway use when they are the correct size, in good condition, and properly inflated. The 225/60R17 example carries a T speed rating, which corresponds to a 118 mph ceiling. On a modern Subaru crossover, real-world safety usually depends more on tire condition, inflation, alignment, and the vehicle's overall mechanical health than on approaching the tire's speed limit.

Highway use becomes much more straightforward when the tire matches the vehicle's wheel diameter and load needs, and when all four tires are kept in comparable condition. Before longer interstate driving, inspect for cracking, vibration, or pressure loss and make sure the tires are not aged out. If the vehicle has mixed wheel packages or recently changed wheels, verify the sidewall code carefully before assuming compatibility.

Inflation pressure for 2020 Subaru Trucks tires should follow the vehicle placard or owner's manual for the exact model and wheel package, with the tire's own maximum-pressure marking understood as a tire limit rather than a blanket operating recommendation. In the 225/60R17 fitment shown here, the available tire carries a maximum load of 1,709 pounds at 44 psi. That 44 psi figure should not be transferred to the other 2020 Subaru Trucks sizes.

The practical approach is to use the Subaru-specified cold inflation pressure for everyday operation, then compare it against the tire sidewall to ensure the tire is operating within its rating. Pressure that is too low can create heat and shoulder wear, while pressure that is too high can affect ride quality and contact patch behavior. Recheck pressure whenever ambient temperatures change significantly.

Before a longer drive in a 2020 Subaru Trucks vehicle, inspect the tires for cuts, cracking, bulges, embedded debris, and uneven tread wear, then verify cold inflation pressure on all four corners. Confirm that the sidewall size matches the wheel diameter on the vehicle and that the spare is usable if one is carried. A quick look at valve stems, wheel condition, and any recent vibration or pull is also worthwhile.

Tire condition is only one part of preparing a modern crossover for distance, but it is the part in direct contact with the road. Pair the tire check with a broader walk-around that includes brakes, fluids, wipers, and lights. If the vehicle has been parked for an extended period, take a short test drive first so you can catch any ride or pressure issues before committing to highway miles.