The 2015 RAM Trucks 1500 sits in the modern half-ton pickup market where daily comfort, towing duty, and trim-level variety all shape tire choice. This generation covers everything from work-oriented models to upscale and off-road-leaning versions, so tire fitment is not the same across the lineup. Depending on sub-model, the 2015 RAM Trucks 1500 uses 265/70R17, 285/70R17, 275/60R20, or 285/45R22 radial tires. That means the real decision starts with confirming trim and wheel diameter, then narrowing the selection by tread style, sidewall presentation, and load specification. Buyers focused on stock-style appearance or practical road use should verify the truck's current wheel setup before choosing.
Which Tire Size Is Right for The 2015 RAM Trucks 1500
The 2015 RAM Trucks 1500 uses four primary tire sizes, and they vary by sub-model and wheel diameter. All of them are radial sizes, but the truck can be fitted with 17-inch, 20-inch, or 22-inch wheels depending on configuration. Before choosing a tire, the first step is confirming the exact sub-model and the wheel diameter currently on the truck, especially if wheels may have been changed since new.
Fit(s): Big Horn, Express, Laramie, Laramie Limited, Laramie Longhorn, Lone Star, Outdoorsman, and Sport
Construction: Radial|Rim: 20 in
A 275/60R20 tire is a metric radial size with a 275-millimeter nominal section width, a 60-series aspect ratio, and fitment for a 20-inch rim. On the 2015 RAM Trucks 1500, this size suits several trims and reflects a modern light-truck fitment that balances a substantial footprint with street-oriented proportions. Tire selection in this size should center on matching the truck's actual wheel setup, since 20-inch-equipped models differ from the 17-inch and 22-inch configurations. It is the right size to evaluate when the truck is one of the many 20-inch-wheel trims rather than a base, off-road, or 22-inch package.
Fit(s): HFE, Laramie, Outdoorsman, SLT, and Tradesman
Construction: Radial|Rim: 17 in
A 265/70R17 tire uses a 265-millimeter nominal section width, a 70-series profile, and a 17-inch rim diameter in radial construction. This size appears on several 2015 RAM Trucks 1500 sub-models and represents one of the core 17-inch fitments in the lineup. Available products in this size come from BFGoodrich in the All-Terrain T/A KO2 series with raised white letter sidewalls, along with differing load specifications and compatible rim-width ranges. It is the size to consider when the truck uses the smaller-diameter factory-style wheel package and the goal is a utility-focused radial rather than a larger-wheel appearance.
A 285/70R17 tire is a radial size with a 285-millimeter nominal section width, a 70-series aspect ratio, and fitment for a 17-inch wheel. On the 2015 RAM Trucks 1500, this size is tied to a specific sub-model rather than the full range, so it should not be treated as a universal 17-inch replacement. BFGoodrich All-Terrain T/A KO2 options are available here with raised white letter sidewalls and more than one load-capacity specification. This size is the one to evaluate when the truck already carries this broader 17-inch fitment and the wheel width, clearance, and intended use all support it.
A 285/45R22 tire combines a 285-millimeter nominal section width with a lower 45-series profile on a 22-inch rim, all in radial construction. Within the 2015 RAM Trucks 1500 range, this size belongs to a specific configuration and stands apart from the more common 17-inch and 20-inch fitments. The lower-profile side of the size code signals that wheel diameter confirmation is especially important before selection, since a 22-inch setup changes both appearance and fitment context. This is the correct size to investigate only when the truck is equipped with that 22-inch wheel package rather than one of the other factory-style combinations.
Tire fitment for the 2015 RAM Trucks 1500 depends heavily on sub-model, and some trims also appear with more than one primary size. Checking the exact trim name matters because this truck spans three wheel diameters and four distinct radial tire sizes.
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2015 RAM Trucks 1500 Big Horn
The 2015 RAM Trucks 1500 Big Horn uses the 275/60R20 radial tire size. Tire selection here starts with confirming that the truck still has its 20-inch wheel setup, then comparing options that match the intended mix of everyday driving, utility use, and overall appearance.
The 2015 RAM Trucks 1500 Express uses the 275/60R20 radial size. That makes wheel-diameter confirmation straightforward, and the main decision becomes choosing a tire that suits the truck's current use rather than sorting through multiple primary fitments.
The 2015 RAM Trucks 1500 HFE uses the 265/70R17 radial tire size. Selection should focus on the truck's 17-inch wheel package and the specific load and tread characteristics desired for its real-world driving role.
The 2015 RAM Trucks 1500 Laramie can use either 265/70R17 or 275/60R20, so trim name alone is not enough to choose a tire. The truck's actual wheel diameter needs to be verified first, since both 17-inch and 20-inch radial fitments are associated with this sub-model.
The 2015 RAM Trucks 1500 Laramie Limited uses the 275/60R20 radial size. The practical step is confirming that the current wheels remain 20-inch, then selecting a tire that matches the truck's road use and desired presentation.
The 2015 RAM Trucks 1500 Laramie Longhorn uses 275/60R20 radial tires. With one primary size tied to this sub-model, the focus shifts from basic fitment to choosing the right tire character for the truck's current wheel setup and driving needs.
The 2015 RAM Trucks 1500 Lone Star uses the 275/60R20 radial size. Buyers should confirm that the truck still runs its 20-inch wheels and then compare tires by construction details and intended use rather than by alternate primary sizes.
The 2015 RAM Trucks 1500 Outdoorsman can use either 265/70R17 or 275/60R20 radial tires. The important step is confirming which wheel package is on the truck now, because the correct tire choice depends on whether it has the 17-inch or 20-inch setup.
The 2015 RAM Trucks 1500 Rebel uses the 285/70R17 radial tire size. That makes the tire decision more specific than on many other trims, with attention best placed on wheel-width compatibility, load specification, and clearance on the truck's existing 17-inch setup.
The 2015 RAM Trucks 1500 SLT uses the 265/70R17 radial size. Tire shopping here is most straightforward when the 17-inch wheels are confirmed first, after which the buyer can focus on the right tread style and load range for the truck's use.
The 2015 RAM Trucks 1500 Sport uses the 275/60R20 radial size. With a single primary fitment attached to this sub-model, the next step is choosing a tire that suits the truck's current duty cycle and preserves proper compatibility with its 20-inch wheels.
The 2015 RAM Trucks 1500 Sport Reg. Cab uses the 285/45R22 radial tire size. Because this is the only 22-inch fitment in the range, accurate wheel confirmation is especially important before comparing tires or considering any change in overall setup.
The 2015 RAM Trucks 1500 Tradesman uses the 265/70R17 radial tire size. That points the buyer toward the truck's 17-inch wheel configuration first, then toward choosing a tire with the right load capability and road-use character for a working pickup.
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 2015 RAM Trucks 1500 Tires for Sale
Available product choices center on the 17-inch RAM 1500 sizes, with BFGoodrich All-Terrain T/A KO2 options in both 265/70R17 and 285/70R17. Those tires share radial construction and raised white letter sidewalls, while load capacity, weight, and compatible rim-width range vary by exact specification.
For the 2015 RAM Trucks 1500, the most important questions involve identifying the correct size by sub-model, confirming wheel diameter, and comparing available radial choices by load specification, sidewall style, and intended use.
Tire Size & Fitment
What tire size fits a 2015 RAM Trucks 1500?
The 2015 RAM Trucks 1500 uses four primary tire sizes: 265/70R17, 285/70R17, 275/60R20, and 285/45R22. All are radial sizes, and the correct one depends on the truck's exact sub-model and wheel package rather than the model name alone.
The practical first step is matching the truck's trim and wheel diameter before looking at tread or brand choices. A Laramie or Outdoorsman may use more than one primary size, so checking the sidewall on the current tires and confirming whether the wheels are 17, 20, or 22 inches helps prevent ordering the wrong fitment.
What size rim does a 2015 RAM Trucks 1500 use?
A 2015 RAM Trucks 1500 can use 17-inch, 20-inch, or 22-inch rims depending on sub-model. The associated primary tire sizes are 265/70R17 and 285/70R17 on 17-inch rims, 275/60R20 on 20-inch rims, and 285/45R22 on 22-inch rims.
Rim diameter should be confirmed before anything else because the truck does not share one wheel size across the whole lineup. Once diameter is verified, wheel width still matters for product selection, especially on the 17-inch all-terrain sizes where compatible rim-width ranges vary by exact tire specification.
Do all 2015 RAM Trucks 1500 sub-models use the same tire size?
No, the 2015 RAM Trucks 1500 does not use one universal tire size across all sub-models. Some trims use 265/70R17, many use 275/60R20, the Rebel uses 285/70R17, and the Sport Reg. Cab uses 285/45R22.
That variation means tire selection should begin with the exact trim name and the wheel package actually on the truck today. It is especially important on trims such as Laramie and Outdoorsman, where more than one primary size is associated with the sub-model, making a quick visual check of wheel diameter worthwhile.
Choosing the Right Tire
What should I consider when choosing a 2015 RAM Trucks 1500 tire?
Start with the correct primary size for the truck's sub-model and wheel diameter, since the 2015 RAM Trucks 1500 spans four different fitments. After size is confirmed, compare construction details such as load specification, rim-width compatibility, and the intended role of the tire for road use, hauling, or mixed-use driving.
Appearance and tread character matter too, but they come after fitment basics. A truck used mainly on pavement may call for a different choice than one that sees rougher surfaces, and any vehicle with aftermarket wheels should have both wheel dimensions and clearance checked before a final tire decision is made.
What sidewall styles are available for 2015 RAM Trucks 1500 tires?
Among the available products for the 17-inch RAM 1500 fitments, the sidewall style offered is RWL, or raised white letter. That sidewall treatment appears on BFGoodrich All-Terrain T/A KO2 tires in both 265/70R17 and 285/70R17 sizes.
Sidewall style affects appearance more than basic fitment, so it should be treated as a secondary choice after confirming the correct size and wheel setup. Raised white letters can give the truck a more traditional all-terrain look, but the right load specification and proper rim compatibility still deserve more attention than lettering style alone.
What brands offer tires for the 2015 RAM Trucks 1500?
The available products for the covered 17-inch RAM 1500 sizes come from BFGoodrich. Those offerings are in the All-Terrain T/A KO2 series for 265/70R17 and 285/70R17 applications, with more than one load specification depending on the exact tire.
Brand is only one part of the decision. Even within the same BFGoodrich series, differences in load capacity, inflation rating, and compatible rim-width range can matter more than the name on the sidewall, so the better comparison is between the exact tire specifications that match how the truck is equipped and used.
Restoration & Appearance
Does correct tire fitment matter for a 2015 RAM Trucks 1500 restoration?
Yes, correct tire fitment still matters on a 2015 RAM Trucks 1500 restoration or refurbishment because the truck was offered with multiple wheel and tire combinations. Using the proper primary size helps preserve the intended stance, wheel relationship, and overall presentation of the specific sub-model being refreshed.
Appearance goals should begin with the right wheel diameter before moving into tread style or sidewall preferences. For buyers trying to match a truck to its original trim character as closely as possible, vehicle-specific reference material, original window-sticker information, or marque-focused sources can help confirm how that particular truck was equipped.
How does tire construction affect the appearance of a restored 2015 RAM Trucks 1500?
On the 2015 RAM Trucks 1500, the primary fitments are radial sizes, so construction itself does not create a bias-ply-versus-radial appearance choice. Visual differences are more likely to come from wheel diameter, tire profile, sidewall treatment, and tread design within the correct radial size.
That means a restored or carefully refreshed truck will usually look more authentic when the right size and wheel package are preserved for its trim. A 17-inch all-terrain setup presents differently from a 20-inch street-oriented fitment or a 22-inch package, even before brand and sidewall details enter the decision.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2015 RAM Trucks 1500?
Yes, modifications can affect tire fitment on a 2015 RAM Trucks 1500 even when the tire size appears correct on paper. Aftermarket wheels, altered wheel width, suspension changes, leveling or lowering kits, and body modifications can all change the space available around the tire.
Clearance at the fender, suspension, and steering components should be checked any time the truck differs from stock wheel and suspension geometry. That is especially important on trims with larger or wider primary sizes, because the correct factory-style size does not guarantee the same result once wheel offset or ride height has changed.
What should I inspect before driving a 2015 RAM Trucks 1500 on new tires?
Before road use, inspect air pressure, lug-nut torque, tread and sidewall condition, and basic clearance around the front and rear wheel openings. It also helps to confirm that the tire size, load specification, and rim dimensions are appropriate for the truck's actual wheel package.
A short slow-speed check for rubbing during turns and suspension movement is worthwhile before longer trips. Trucks that sit for stretches between uses also deserve a close look for air loss, irregular wear, cuts, or impact damage, since those issues can appear even when tread depth still looks acceptable.
How often should tires on a 2015 RAM Trucks 1500 be inspected?
Tires on a 2015 RAM Trucks 1500 should be inspected regularly, not just at replacement time. A quick visual check before routine driving and a more thorough inspection at service intervals helps catch uneven wear, pressure loss, sidewall damage, or developing clearance problems before they become larger issues.
Trucks used for hauling, towing, or rougher surfaces deserve even closer attention because load and impact exposure can change tire condition faster. Any RAM 1500 that spends time parked between uses should also have its tires checked for aging, flat spotting, and pressure drift before returning to normal road duty.
