The 2025 Rivian Trucks R1T blends modern EV truck capability with the stance and utility buyers expect from a premium adventure pickup. Its mix of performance, range-minded engineering, and off-pavement intent makes tire choice especially important, because the wrong size or wheel assumption can change the truck’s character quickly. The 2025 Rivian Trucks R1T uses three primary radial tire sizes: 275/50R22, 275/60R20, and 275/65R20. That means the first step is confirming which wheel and tire package your truck actually has, then comparing tread style, sidewall presentation, and intended use. For owners balancing daily driving, appearance, and trail readiness, fitment accuracy matters as much as tire type.
Which Tire Size Is Right for The 2025 Rivian Trucks R1T
The 2025 Rivian Trucks R1T uses three primary tire sizes, and the right choice depends on confirming the truck’s actual wheel package first. These sizes are all radial, but they span both 20-inch and 22-inch rims, so rim diameter is the first detail to verify before comparing any tire. Once that is settled, the decision shifts to intended use, overall tire profile, and product style within the correct size.
A 275/50R22 tire uses a 275-millimeter nominal section width, a 50-series aspect ratio, radial construction, and fits a 22-inch rim. On the 2025 Rivian Trucks R1T, this size represents the larger-wheel fitment, so appearance and wheel confirmation are central before moving ahead. The lower-profile format gives this size a distinctly modern look compared with the 20-inch options. It is the right size to evaluate only if the truck is already equipped with the corresponding 22-inch wheel setup and the owner wants to stay with that overall fitment direction.
A 275/60R20 tire keeps the same 275-millimeter nominal width, uses radial construction, and fits a 20-inch rim with a taller sidewall than the 22-inch option. For the 2025 Rivian Trucks R1T, this size sits in the middle of the three primary fitments and should be matched carefully to the truck’s actual wheel package. Its sizing format points buyers toward a balance of wheel diameter and sidewall height rather than a purely appearance-driven choice. It is the size to consider when the truck uses 20-inch wheels but does not require the tallest overall primary fitment shown here.
A 275/65R20 tire carries a 275-millimeter nominal section width, radial construction, and a 20-inch rim diameter, with a taller sidewall profile than the other primary R1T sizes. This is the size supported here by an available BFGoodrich All-Terrain T/A KO2 option with an RBL sidewall, giving it a more truck-oriented and utility-focused presentation. Its product details also make rim-width compatibility part of the selection process, not just size alone. Buyers looking at this fitment should confirm both the 20-inch wheel package and the intended mix of paved-road and off-pavement use.
Fitment is straightforward across the covered 2025 Rivian Trucks R1T sub-models because Adventure and Ascend share the same three primary tire sizes. The main task is not choosing by sub-model, but confirming whether the truck has the 20-inch or 22-inch wheel package and which of the 20-inch sizes it uses.
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2025 Rivian Trucks R1T Adventure
The 2025 Rivian Trucks R1T Adventure can use 275/50R22, 275/60R20, or 275/65R20, all in radial construction. Tire selection depends more on the truck’s actual wheel and tire package than on the Adventure name itself, so wheel diameter should be verified before comparing tread style or product details.
The 2025 Rivian Trucks R1T Ascend shares the same three radial tire sizes: 275/50R22, 275/60R20, and 275/65R20. That keeps sub-model fitment simple, but it still leaves a crucial wheel-package check, especially when deciding between the two 20-inch fitments and the separate 22-inch setup.
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 2025 Rivian Trucks R1T Tires for Sale
Available product comparison is currently centered on 275/65R20, with a BFGoodrich All-Terrain T/A KO2 radial that combines an RBL sidewall, all-terrain series character, and a 7.5- to 9.5-inch rim-width range. That makes wheel compatibility and intended use key points to compare in the product grid.
Owners researching 2025 Rivian Trucks R1T tires usually need to sort out the correct size first, then compare wheel diameter, tire profile, available product choices, and the fitment checks that matter before regular road or trail use.
Tire Size & Fitment
What tire size fits a 2025 Rivian Trucks R1T?
The 2025 Rivian Trucks R1T uses three primary tire sizes: 275/50R22, 275/60R20, and 275/65R20. All three are radial sizes, but they do not represent one universal setup because the truck uses both 20-inch and 22-inch wheel diameters depending on configuration.
The practical next step is checking the tire size already mounted on the truck or confirming the wheel package directly at the wheel and tire. Once the correct primary size is established, then it makes sense to compare tread style, sidewall treatment, rim-width compatibility, and how the truck will be used on pavement or off pavement.
What size rim does a 2025 Rivian Trucks R1T use?
A 2025 Rivian Trucks R1T uses either a 20-inch or 22-inch rim, depending on which of its three primary tire sizes the truck carries. The 275/50R22 size uses a 22-inch rim, while both 275/60R20 and 275/65R20 use a 20-inch rim.
That rim-diameter difference matters because it determines which tire family you can even consider. A 20-inch tire cannot be mounted on a 22-inch wheel, and a 22-inch tire cannot be mounted on a 20-inch wheel. Before choosing a replacement, confirm both the rim diameter and the exact tire size already on the truck, especially if wheels may have been changed.
Do all 2025 Rivian Trucks R1T sub-models use the same tire size?
The Adventure and Ascend versions of the 2025 Rivian Trucks R1T share the same range of primary tire sizes: 275/50R22, 275/60R20, and 275/65R20. That means sub-model name alone does not narrow the truck to one single tire size.
Because both sub-models can use the same three fitments, the real identification step is the wheel and tire package currently on the truck. Checking the sidewall marking on the existing tire is usually the quickest confirmation. That prevents confusion between the two 20-inch sizes and the separate 22-inch fitment before comparing available replacement options.
Choosing the Right Tire
What should I consider when choosing a 275/65R20 tire for a 2025 Rivian Trucks R1T?
Start with the basics: confirm that 275/65R20 is the actual size on the truck, verify the 20-inch wheel, and make sure the tire’s construction and intended use match the R1T’s role. In the available product selection, this size appears as a radial BFGoodrich All-Terrain T/A KO2 with an RBL sidewall.
Selection becomes more specific once fitment is confirmed. Compare rim-width compatibility, load capacity, tread character, and whether the truck will spend more time commuting, traveling, or seeing off-pavement use. A tire in the correct size still needs to suit the wheel and the owner’s priorities, especially on a truck that may be used across very different conditions.
What brands offer tires for the 2025 Rivian Trucks R1T?
The available product selection shown here includes BFGoodrich for the 2025 Rivian Trucks R1T, specifically in the 275/65R20 size. That product is the BFG All-Terrain T/A KO2, a radial all-terrain tire built for a 20-inch rim.
Brand is only one part of the decision, especially on a modern truck with multiple primary tire sizes. The first priority is still matching the exact size and wheel diameter already on the vehicle. After that, compare the tire series, sidewall presentation, rim-width range, and the kind of driving the truck actually sees before settling on a replacement.
How do I choose between the available 2025 Rivian Trucks R1T tires?
The first choice is not brand or tread pattern but correct fitment. A 2025 Rivian Trucks R1T may use 275/50R22, 275/60R20, or 275/65R20, so the wheel diameter and exact tire size must be settled before comparing anything else.
After size is confirmed, compare the tire’s intended character with how the truck is used. A buyer may weigh wheel appearance, sidewall height, tread style, rim-width requirements, and load-related specifications differently depending on whether the R1T is mainly a daily driver, a road-trip truck, or a vehicle expected to spend time on rougher surfaces.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2025 Rivian Trucks R1T?
Yes. Wheel changes, altered offsets, suspension modifications, or a move away from the truck’s original wheel package can all affect tire fitment on a 2025 Rivian Trucks R1T. That matters even when staying near the original size range, because the truck already spans both 20-inch and 22-inch fitments.
Any modified R1T should be checked for wheel diameter, wheel width, and clearance at full steering lock and suspension movement before replacement tires are chosen. Tire size printed on the sidewall remains the best starting point, but aftermarket wheels or changes in ride height can shift what actually works on the truck.
What should I inspect before driving a 2025 Rivian Trucks R1T on new tires?
Before regular use, inspect inflation pressure, bead seating, lug torque, tread and sidewall condition, and any sign of contact with suspension or body components. It is also smart to confirm that all four tires match the intended size and that the wheel diameter is correct for the tire being mounted.
A short road test can reveal pulling, vibration, or rubbing that is easier to correct early than after miles of use. On a truck like the R1T, tire fit should be checked through steering travel and under normal loaded conditions as well. That extra step helps catch clearance issues that may not be obvious while parked.
What should I check before a longer drive in a 2025 Rivian Trucks R1T?
Before a longer drive, make sure the tires are properly inflated, free from cuts or bulges, and wearing evenly across the tread. Confirm that the truck is running the correct tire size for its wheel package, since the 2025 Rivian Trucks R1T can use more than one primary size and more than one rim diameter.
Longer trips also make it worthwhile to look for slow air loss, inspect valve stems, and make sure there is no rubbing under steering or suspension movement. Drivers who rotate between road use and rougher terrain should pay extra attention to sidewall condition and any impact damage, especially on larger, heavier truck tire assemblies.
