The 2019 Audi Trucks SQ5 sits in the modern performance-crossover space, blending Audi luxury with the sharper road manners buyers expect from an S-badged model. It is a vehicle where tire choice has a direct effect on both appearance and everyday driving feel. The 2019 Audi Trucks SQ5 uses radial tire fitments in two sizes, 255/45R20 and 255/40R21, so the first step is confirming which wheel diameter is actually on the vehicle. Product choice is centered on the 20-inch fitment, with blackwall, raised white letter, and redline sidewall treatments available across several series. That makes the decision less about vintage-style construction and more about matching wheel size, look, and intended use.
Which Tire Size Is Right for The 2019 Audi Trucks SQ5
The 2019 Audi Trucks SQ5 uses two primary tire sizes, and both are radial metric fitments with nearly the same overall diameter but different wheel diameters. Every covered sub-model can use either size, so the first thing to confirm is whether the vehicle is wearing 20-inch or 21-inch wheels. Once wheel diameter is settled, the decision becomes choosing the right tire style and product characteristics for that setup.
The size 255/40R21 identifies a radial tire that is 255 millimeters wide, uses a 40-series aspect ratio, and mounts on a 21-inch wheel. On the 2019 Audi Trucks SQ5, this is one of the primary modern radial fitments and is tied to the larger wheel package. Its lower-profile format suits buyers who want to retain the sharper visual stance that comes with a 21-inch rim. Before choosing this size, confirm that the SQ5 is actually equipped with 21-inch wheels and that any replacement matches the vehicle's wheel and clearance requirements.
The size 255/45R20 is a metric radial with a 255-millimeter section width, a 45-series profile, and a 20-inch rim diameter. For the 2019 Audi Trucks SQ5, this fitment opens the door to several product choices, including BFGoodrich, Nitto, and Pro-Trac options, with blackwall, raised white letter, and redline sidewall treatments. Available series include g-Force Comp 2 AS, g-Force Sport Comp 2, Nitto NT555 G2, and Street Pro III. This size is the one to evaluate if the vehicle is on 20-inch wheels and appearance choice matters alongside performance-oriented radial construction.
Fitment is straightforward across the 2019 Audi Trucks SQ5 range because Premium, Premium Plus, and Prestige all share the same two tire-size possibilities. Checking the sub-model still helps keep the search organized, but wheel diameter remains the real deciding factor before selecting a tire.
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2019 Audi Trucks SQ5 Premium
The 2019 Audi Trucks SQ5 Premium uses the same pair of radial fitments found across the SQ5 lineup. Tire selection comes down to confirming whether this particular vehicle has 20-inch or 21-inch wheels, then choosing the sidewall style and tire series that best suit its use and appearance.
The 2019 Audi Trucks SQ5 Premium Plus follows the same tire-fitment pattern as the other covered sub-models, with both primary radial sizes applicable. That means the practical choice is not trim-based so much as wheel-based, especially if the vehicle has changed hands or received wheel upgrades.
The 2019 Audi Trucks SQ5 Prestige shares the same radial tire-size options used elsewhere in the SQ5 range. For this sub-model, the important step is confirming the actual wheel diameter on the vehicle before comparing available product styles, series, and sidewall treatments.
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 2019 Audi Trucks SQ5 Tires for Sale
Available 255/45R20 tires for the 2019 Audi Trucks SQ5 include BFGoodrich, Nitto, and Pro-Trac products in several series. Buyers can compare blackwall, raised white letter, and redline sidewall treatments along with rim-width specifications, load details where stated, and other radial tire characteristics.
These FAQs focus on the two tire sizes used on the 2019 Audi Trucks SQ5, how wheel diameter affects fitment, and how to compare available radial tire choices by brand, sidewall style, and intended use.
Tire Size & Fitment
What tire size fits a 2019 Audi Trucks SQ5?
The 2019 Audi Trucks SQ5 uses two primary tire sizes: 255/45R20 and 255/40R21. Both are radial metric fitments, and both appear across the Premium, Premium Plus, and Prestige sub-models rather than being limited to one trim level.
The key is confirming which wheel diameter is actually on the vehicle before buying tires. These two sizes are very close in overall diameter, but they mount on different rims, so a 20-inch tire cannot be used on a 21-inch wheel. If the SQ5 has aftermarket wheels, verify the current setup at the vehicle rather than relying only on trim name.
What size rim does a 2019 Audi Trucks SQ5 use?
A 2019 Audi Trucks SQ5 uses either a 20-inch or 21-inch rim, depending on which of its two primary tire sizes is on the vehicle. The 255/45R20 tire fits a 20-inch wheel, while the 255/40R21 tire fits a 21-inch wheel.
That rim difference matters more than the trim badge because every covered sub-model can use either size. Checking the wheel itself is the safest starting point, especially on a used vehicle. Once rim diameter is confirmed, compare the tire's width and profile format to the actual wheel package and make sure replacement tires match the setup already on the SQ5.
Do all 2019 Audi Trucks SQ5 sub-models use the same tire size?
Yes. The 2019 Audi Trucks SQ5 Premium, Premium Plus, and Prestige all share the same two tire-size options: 255/45R20 and 255/40R21. Both sizes are radial fitments, so the difference is not sub-model construction but wheel diameter.
That makes fitment simpler than it first appears, since trim level alone does not decide the tire. The practical step is identifying the wheel package currently on the vehicle. A Prestige model is not automatically on 21-inch wheels, and a Premium model is not automatically on 20s, so an actual wheel-and-tire check prevents ordering the wrong size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2019 Audi Trucks SQ5?
Start with the correct primary size for the wheel on the vehicle, since the 2019 Audi Trucks SQ5 uses either 255/45R20 or 255/40R21. After that, compare construction details, sidewall style, tire series, rim-width specifications, and any stated load information that applies to the product you are considering.
The right choice depends on how the SQ5 is used and how you want it to look. Some buyers prefer a clean blackwall presentation, while others want raised white letters or a redline accent. If the vehicle has non-stock wheels or suspension changes, make sure the selected tire still suits the actual setup rather than assuming every same-size option will behave the same way.
What sidewall styles are available for 2019 Audi Trucks SQ5 tires?
For the 2019 Audi Trucks SQ5 255/45R20 fitment, available sidewall styles include blackwall, RWL, and redline. Blackwall appears on BFGoodrich and Nitto options, while Pro-Trac Street Pro III is available with either raised white letters or a redline treatment.
Sidewall style mostly affects appearance, but it can strongly influence the overall character of the vehicle. A blackwall gives the SQ5 a more understated modern look, while RWL and redline create a more expressive performance-oriented presentation. Once the correct size is confirmed, the sidewall choice becomes one of the easiest ways to tailor the tire's visual impact.
What brands offer tires for the 2019 Audi Trucks SQ5?
Available 255/45R20 tires for the 2019 Audi Trucks SQ5 come from BFGoodrich, Nitto, and Pro-Trac. Those options span several series, including g-Force Comp 2 AS, g-Force Sport Comp 2, Nitto NT555 G2, and Street Pro III.
Brand is only one part of the decision, so it helps to compare the rest of the specification at the same time. Sidewall treatment, rim-width compatibility, and the intended character of the tire series can matter just as much. Keeping the correct size first and then narrowing by appearance and product details usually leads to a more useful comparison than choosing by brand alone.
Restoration & Appearance
Which tire should I choose for a period-style 2019 Audi Trucks SQ5?
A period-style approach on a 2019 Audi Trucks SQ5 usually starts with keeping the correct modern radial size for the wheel diameter already on the vehicle. Since this is a late-model performance crossover rather than a vintage restoration candidate, the appearance decision is more about preserving a clean contemporary look than recreating an older tire era.
Blackwall options tend to maintain the most understated presentation, while RWL or redline versions add more visual emphasis. The best choice depends on whether the goal is subtle factory-inspired styling or a more personalized performance look. Before focusing on appearance, confirm whether the SQ5 is on 20-inch or 21-inch wheels so the tire choice stays aligned with the actual setup.
How does tire construction affect the appearance of a restored 2019 Audi Trucks SQ5?
On a 2019 Audi Trucks SQ5, construction does not create a bias-ply-versus-radial appearance question because the primary fitments are radial. The visual difference comes more from profile and sidewall treatment than from old-versus-new construction, especially when comparing blackwall, raised white letter, and redline versions in the 255/45R20 size.
That means appearance planning is mostly about maintaining the right overall stance for the wheel package already on the vehicle. A 20-inch setup and a 21-inch setup present differently even though their overall diameters are very close. Matching the correct size first, then choosing the sidewall style that suits the SQ5's character, gives the cleanest result.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Audi Trucks SQ5?
Yes. Wheel changes, suspension lowering, spacer use, or other modifications can affect tire fitment on a 2019 Audi Trucks SQ5 even when the tire size appears close to stock. The vehicle's two primary sizes already involve different wheel diameters, so any change to the wheel package can alter the fitment picture further.
A modified SQ5 should be checked for actual wheel diameter, width, and clearance at full steering lock and through suspension travel. Even small changes can influence how a 255-width tire sits in the wheelwell. Verifying the current setup before selecting tires helps avoid conflicts with fenders, suspension components, or the wheel itself.
What should I inspect before driving a 2019 Audi Trucks SQ5 on new tires?
Before driving a 2019 Audi Trucks SQ5 on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure inflation is set correctly for the installation. It also helps to check for any obvious alignment or suspension issues that could affect how the new tires wear.
A short clearance check is worthwhile, especially if the SQ5 has aftermarket wheels or a lowered stance. Look for rubbing at the inner fender, suspension, and steering components with the wheels turned. After the first miles, recheck pressure and watch for vibration, pulling, or unusual contact marks that could point to a setup problem.
How often should tires on a 2019 Audi Trucks SQ5 be inspected?
Tires on a 2019 Audi Trucks SQ5 should be inspected regularly rather than only when tread looks low. A quick routine check for pressure loss, uneven wear, cuts, bulges, and sidewall damage helps catch problems early, particularly on a performance-oriented vehicle that places more demand on its tires.
Inspection becomes even more important if the SQ5 is driven infrequently, parked for long periods, or fitted with larger aftermarket wheels. Tires can age or lose air without obvious warning. Looking them over before longer drives and after any impact with potholes or curbs helps protect both ride quality and fitment integrity.
