The 2024 Rivian Trucks R1S blends three-row SUV utility with the quick, tech-forward character expected from a modern electric adventure vehicle. Its tire choice matters more than usual because wheel and package differences change both the rim diameter and the intended use of the vehicle. This R1S uses radial tires in three distinct sizes: 275/50R22, 275/55R21, and 275/65R20. That means the decision starts with identifying the exact sub-model and wheel setup rather than simply picking one size. Buyers comparing a road-oriented setup to an all-terrain package should keep appearance, clearance, and intended driving conditions in mind before making a selection.
Which Tire Size Is Right for The 2024 Rivian Trucks R1S
The 2024 Rivian Trucks R1S uses three primary tire sizes, and they do not all share the same rim diameter. Fitment varies by sub-model and package, so the first step is confirming whether the vehicle is equipped with 20-inch, 21-inch, or 22-inch wheels. Once that is established, the real comparison becomes road-oriented versus all-terrain intent, along with wheel compatibility and overall setup.
275/50R22 is a metric radial size where 275 is the nominal section width in millimeters, 50 is the aspect ratio, R identifies radial construction, and 22 is the rim diameter in inches. On the 2024 Rivian Trucks R1S, this size belongs to a larger-diameter wheel setup and suits configurations that use 22-inch rims. Its dimensions point to a lower-profile presentation than the other R1S sizes listed here. This is the size to evaluate when the vehicle has 22-inch wheels and the goal is to stay with the correct primary fitment for that setup.
275/55R21 follows the same modern metric radial format: 275 millimeters of nominal section width, a 55-series profile, radial construction, and a 21-inch rim. For the 2024 Rivian Trucks R1S, this size applies to Adventure configurations using the 21-inch wheel package. It sits between the 22-inch and 20-inch options in overall profile, giving it a distinct place within the R1S fitment range. This is the size to confirm when the vehicle is equipped with 21-inch wheels and is not using the all-terrain 20-inch package.
Fit(s): Adventure w/All-Terrain Pkg. and Ascend w/All-Terrain Pkg.
Construction: Radial|Rim: 20 in
275/65R20 is a metric radial size that combines a 275-millimeter nominal width with a 65-series profile on a 20-inch rim. On the 2024 Rivian Trucks R1S, this size is tied to the all-terrain package and carries the tallest overall diameter among the primary R1S sizes shown here. Available product choice in this size includes the BFGoodrich All-Terrain T/A KO2 with an RBL sidewall and a 7.5- to 9.5-inch rim-width range. This is the fitment to check when the R1S is set up for more rugged use and wears the 20-inch all-terrain wheel package.
Sub-model fitment on the 2024 Rivian Trucks R1S is not uniform, because wheel and package choices change the applicable tire size. Identifying the exact trim and whether the vehicle carries the All-Terrain Package is the key step before comparing tires.
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2024 Rivian Trucks R1S Adventure
The 2024 Rivian Trucks R1S Adventure uses either a 275/50R22 or 275/55R21 radial tire, depending on the wheel setup. That makes wheel confirmation especially important before selecting a replacement, since both sizes are correct for this sub-model in different configurations.
The 2024 Rivian Trucks R1S Adventure w/All-Terrain Pkg. uses the 275/65R20 radial size. Tire selection here centers on staying with the 20-inch all-terrain fitment and comparing options that suit the package's more rugged visual and driving intent.
The 2024 Rivian Trucks R1S Ascend uses the 275/50R22 radial size. That keeps the fitment decision fairly straightforward, with the focus shifting to confirming the 22-inch wheel setup and choosing a tire that matches the vehicle's intended road use.
The 2024 Rivian Trucks R1S Ascend w/All-Terrain Pkg. uses 275/65R20 radial tires. Buyers should confirm the 20-inch wheel package first, then compare tire details such as rim-width compatibility and overall suitability for the way the vehicle is driven.
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 2024 Rivian Trucks R1S Tires for Sale
Available product coverage for the 2024 Rivian Trucks R1S is concentrated in 275/65R20, with a BFGoodrich All-Terrain T/A KO2 option that uses radial construction, an RBL sidewall, and a 7.5- to 9.5-inch rim-width range. That makes the product grid most useful for buyers focused on the all-terrain package setup.
Tire questions for the 2024 Rivian Trucks R1S usually center on identifying the correct size by sub-model, confirming wheel diameter, and understanding how the 20-inch all-terrain setup differs from the 21-inch and 22-inch road-oriented fitments.
Tire Size & Fitment
What tire size fits a 2024 Rivian Trucks R1S?
The 2024 Rivian Trucks R1S uses three primary tire sizes: 275/50R22, 275/55R21, and 275/65R20. All are radial tires, but they do not apply across every configuration, because sub-model and package choice determine which size belongs on the vehicle.
The important next step is confirming the exact sub-model and wheel diameter already on the R1S. Adventure can use either 275/50R22 or 275/55R21, Ascend uses 275/50R22, and both All-Terrain Package versions use 275/65R20. Matching the tire to the actual wheel setup is more important here than treating every R1S as the same.
What size rim does a 2024 Rivian Trucks R1S use?
A 2024 Rivian Trucks R1S can use 20-inch, 21-inch, or 22-inch rims, depending on the sub-model and package. The 275/65R20 tire fits a 20-inch rim, 275/55R21 fits a 21-inch rim, and 275/50R22 fits a 22-inch rim.
That variation means rim diameter should be checked before ordering any replacement tire. Looking only at the model name is not enough, especially on an Adventure trim that can use more than one wheel size. If the vehicle has been changed from its original wheel package, verify the actual wheel dimensions on the vehicle rather than assuming the factory package remains in place.
Why does the 2024 Rivian Trucks R1S have more than one tire size?
The 2024 Rivian Trucks R1S has more than one tire size because different sub-models and package combinations use different wheel diameters. Adventure can be equipped with either 21-inch or 22-inch wheel setups, while the All-Terrain Package versions use a 20-inch wheel and the 275/65R20 tire size.
In practical terms, tire selection starts with identifying the exact trim and package rather than comparing sizes as interchangeable options. Each size belongs to a specific wheel diameter, and the 20-inch all-terrain configuration also reflects a different use case. Checking the current wheel setup, especially on a used R1S, avoids choosing a tire that matches the model but not the vehicle.
Choosing the Right Tire
What should I consider when choosing a tire for a 2024 Rivian Trucks R1S?
Start with the correct primary tire size for the exact 2024 Rivian Trucks R1S configuration: 275/50R22, 275/55R21, or 275/65R20. From there, compare the intended use of the vehicle, because the 20-inch size is tied to the All-Terrain Package while the 21-inch and 22-inch sizes belong to different wheel setups.
Wheel diameter has to match the tire size, and wheel width should also be checked when product details are available. Buyers should also think about whether the goal is daily road use, a more rugged driving mix, or preserving the character of an existing package. On a vehicle with previous wheel changes, confirming the actual hardware matters before comparing tire options.
What brands offer tires for the 2024 Rivian Trucks R1S?
Current product coverage for the 2024 Rivian Trucks R1S includes BFGoodrich in the 275/65R20 size. That option is the All-Terrain T/A KO2, which aligns with the R1S configurations that use the 20-inch all-terrain package setup.
Brand comparison only helps after the correct size and wheel diameter are confirmed. On this page, the BFGoodrich offering is relevant specifically to the 275/65R20 fitment rather than to every R1S configuration. Buyers with 21-inch or 22-inch wheels should avoid assuming that a product shown for the all-terrain setup applies to those larger-diameter road-oriented wheel packages.
How do I choose between the available 275/65R20 tires for a 2024 Rivian Trucks R1S?
For a 2024 Rivian Trucks R1S using 275/65R20, begin by confirming that the vehicle is one of the All-Terrain Package configurations. The available option in this size is the BFGoodrich All-Terrain T/A KO2, a radial tire with an RBL sidewall, a 7.5- to 9.5-inch rim-width range, and a 3,750-pound maximum load rating at 80 psi.
Those details should be compared against the actual wheel width on the vehicle and the kind of use the R1S sees most often. The sidewall treatment and all-terrain character also matter for buyers who want the package to retain its intended visual stance. On a used vehicle, it is smart to verify that the current wheels still match the original all-terrain setup.
Restoration & Appearance
Does correct tire fitment matter for a 2024 Rivian Trucks R1S restoration or appearance build?
Yes, correct tire fitment still matters on a 2024 Rivian Trucks R1S even if the goal is mainly visual. The R1S uses multiple wheel diameters, and each tire size is tied to a specific configuration, so the overall look of the vehicle depends on keeping the tire size matched to the intended wheel package.
Appearance builds can quickly look off-balance when a tire meant for one wheel diameter is substituted into another setup without careful planning. On this vehicle, the 20-inch all-terrain package has a different visual character from the 21-inch and 22-inch configurations. Verifying wheel size, package type, and clearance helps preserve a clean, purposeful stance.
How does tire choice affect the appearance of a 2024 Rivian Trucks R1S?
Tire choice changes the visual character of a 2024 Rivian Trucks R1S because the vehicle uses 20-inch, 21-inch, and 22-inch fitments with different profile relationships. A 275/65R20 all-terrain setup presents differently from a 275/50R22 configuration, even though both belong to the same model line.
That makes it important to match the tire to the wheel package the vehicle is meant to carry rather than choosing by width alone. Sidewall treatment also influences the final look, and the available 275/65R20 BFGoodrich option uses an RBL sidewall. Buyers focused on presentation should confirm both the wheel diameter and the overall package theme before changing tires.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2024 Rivian Trucks R1S?
Yes, modifications can affect tire fitment on a 2024 Rivian Trucks R1S. Wheel changes, suspension adjustments, or alterations to ride height can change the space available for the tire and may also alter whether the current size still matches the wheel correctly.
That matters even more on the R1S because it already uses three different factory tire sizes across three rim diameters. A vehicle that started as a 21-inch or 22-inch setup may no longer match its original package after aftermarket changes. Checking wheel diameter, wheel width, and clearance at full steering lock is a smart step before replacing tires.
What should I inspect before driving a 2024 Rivian Trucks R1S on new tires?
Before driving a 2024 Rivian Trucks R1S on new tires, inspect the wheel size, confirm that the installed tire matches that wheel diameter, and make sure the tires are inflated appropriately for the application. It is also wise to look for any visible wheel damage, uneven old-tire wear, or signs that alignment or suspension issues may already be present.
A short test drive should include listening for rubbing and checking steering clearance, especially if the vehicle has had wheel or suspension changes. After the first miles, recheck inflation and inspect for any contact marks near the fenders or inner wheel areas. Those simple checks help confirm that the chosen tire size suits the R1S as it sits now.
What should I check before a longer drive in a 2024 Rivian Trucks R1S?
Before a longer drive in a 2024 Rivian Trucks R1S, confirm that all four tires are the correct size for the wheel setup and inspect them for cuts, bulges, punctures, and irregular wear. Tire pressure should also be checked when the tires are cold, and the wheels should be examined for any visible damage.
Longer trips place more importance on basic condition than a short local drive, especially if the R1S has recently changed wheel packages or received new tires. It also helps to verify that there is no rubbing at full steering input and no vibration that suggests balance or alignment trouble. Catching those issues early protects both tire life and day-to-day drivability.
