The 2021 Audi Trucks Q5 PHEV sits in the modern luxury crossover market with plug-in hybrid capability, all-weather usability, and the sharper road manners buyers expect from an Audi. For owners, tire choice is less about vintage construction and more about confirming the exact wheel setup already on the vehicle. This Q5 PHEV uses radial tires in two primary sizes, 235/55R19 and 255/45R20, and both appear across the covered sub-models. That opens the door to different product personalities, from straightforward blackwall performance options to RWL and redline treatments in 20-inch fitment. The key is matching the tire to the actual rim diameter, intended use, and overall look you want from the vehicle.
Which Tire Size Is Right for The 2021 Audi Trucks Q5 PHEV
The 2021 Audi Trucks Q5 PHEV uses two primary tire sizes, and the first step is confirming whether the vehicle is on 19-inch or 20-inch wheels. Every covered sub-model can use either 235/55R19 or 255/45R20 radial tires, so the real selection decision comes down to wheel diameter first, then the type of tire presentation and product characteristics you want within that size.
Fit(s): Premium, Premium Plus, Premium Plus w/Air Suspension, Premium w/Air Suspension, Prestige, and Prestige w/Air Suspension
Construction: Radial|Rim: 19 in
235/55R19 is a metric radial size in which 235 is the section width in millimeters, 55 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter in inches. On the 2021 Audi Trucks Q5 PHEV, this size represents the 19-inch wheel fitment and keeps the selection process focused on matching the actual wheel setup on the vehicle. As a modern radial size, it suits buyers looking for a straightforward contemporary fitment approach rather than a vintage-style tire presentation. Choose this size only after confirming the vehicle is equipped with 19-inch wheels and that the wheel width and overall setup remain appropriate.
Fit(s): Premium, Premium Plus, Premium Plus w/Air Suspension, Premium w/Air Suspension, Prestige, and Prestige w/Air Suspension
Construction: Radial|Rim: 20 in
255/45R20 is a metric radial size where 255 denotes section width in millimeters, 45 is the aspect ratio, R marks radial construction, and 20 identifies the rim diameter in inches. For the 2021 Audi Trucks Q5 PHEV, this is the 20-inch fitment and it brings the widest visible product variety on the page. Available choices include BFGoodrich, Nitto, and Pro-Trac options with blackwall, RWL, and redline sidewall treatments across series such as g-Force Comp 2 AS, g-Force Sport Comp 2, Nitto NT555 G2, and Street Pro III. This size is the one to evaluate when the vehicle already wears 20-inch wheels and appearance choice matters alongside fitment.
Tire fitment is straightforward across the covered 2021 Audi Trucks Q5 PHEV sub-models because each one can use the same two primary sizes. The important step is not trim identification by itself, but confirming whether the vehicle has 19-inch or 20-inch wheels before choosing a tire.
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2021 Audi Trucks Q5 PHEV Premium
The 2021 Audi Trucks Q5 PHEV Premium can use either of the two primary radial tire sizes offered for this model line. Tire selection starts with the actual wheel diameter on the vehicle, then moves to product style and road-use priorities within that size.
The 2021 Audi Trucks Q5 PHEV Premium Plus shares the same overall tire-fitment pattern as the other covered sub-models, with both primary radial sizes applying. That makes wheel confirmation the key first check before comparing available tire series, sidewall styles, and other product differences.
2021 Audi Trucks Q5 PHEV Premium Plus w/Air Suspension
The 2021 Audi Trucks Q5 PHEV Premium Plus w/Air Suspension uses the same two primary radial tire sizes as the rest of the range. For this sub-model, the practical decision is confirming the installed wheel diameter and checking clearance carefully if the vehicle has any wheel or suspension changes beyond stock configuration.
The 2021 Audi Trucks Q5 PHEV Premium w/Air Suspension follows the same tire-size pattern, with both primary radial sizes applying. Once the wheel diameter is confirmed, the choice becomes one of tire character, sidewall treatment where available, and compatibility with the vehicle's current setup.
The 2021 Audi Trucks Q5 PHEV Prestige does not introduce a separate tire size outside the two primary radial fitments used across the model line. The main selection step is verifying whether the vehicle is on 19-inch or 20-inch wheels, then comparing the available tire options in that size.
2021 Audi Trucks Q5 PHEV Prestige w/Air Suspension
The 2021 Audi Trucks Q5 PHEV Prestige w/Air Suspension uses the same pair of primary radial tire sizes found on the other covered sub-models. Buyers should verify wheel diameter first and then review tire construction details, sidewall appearance, and wheel compatibility before making a final choice.
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 2021 Audi Trucks Q5 PHEV Tires for Sale
Available 2021 Audi Trucks Q5 PHEV tire choices center on 255/45R20 radial fitment, with BFGoodrich, Nitto, and Pro-Trac offerings. Buyers can compare blackwall, RWL, and redline sidewall treatments along with series such as g-Force Comp 2 AS, g-Force Sport Comp 2, NT555 G2, and Street Pro III.
These FAQs focus on the exact tire sizes used on the 2021 Audi Trucks Q5 PHEV, how the 19-inch and 20-inch wheel fitments differ, and what to compare when choosing among the available radial tire options.
Tire Size & Fitment
What tire size fits a 2021 Audi Trucks Q5 PHEV?
The 2021 Audi Trucks Q5 PHEV uses two primary tire sizes: 235/55R19 and 255/45R20. Both are radial tire fitments, and both appear across the covered Q5 PHEV sub-models rather than being limited to a single trim family.
The important next step is confirming which wheel diameter is actually on the vehicle. A Q5 PHEV equipped with 19-inch wheels needs the 235/55R19 size, while a vehicle on 20-inch wheels needs 255/45R20. If the vehicle has been changed from its original wheel package, verify the wheel diameter and width before choosing a tire.
What size rim does a 2021 Audi Trucks Q5 PHEV use?
A 2021 Audi Trucks Q5 PHEV can use either a 19-inch or 20-inch rim, depending on the wheel package on the vehicle. The 235/55R19 size fits a 19-inch rim, while the 255/45R20 size fits a 20-inch rim.
That distinction matters more than trim name alone because every covered sub-model can use both primary tire sizes. Checking the actual wheel diameter on the vehicle prevents ordering the correct tire size for the wrong wheel. It also helps narrow the product search quickly, since the visible product assortment here is centered on the 20-inch fitment.
Do all 2021 Audi Trucks Q5 PHEV sub-models use the same tire size?
The covered 2021 Audi Trucks Q5 PHEV sub-models share the same two primary tire sizes rather than having separate trim-specific sizes. Premium, Premium Plus, Prestige, and the air suspension variants can all use either 235/55R19 or 255/45R20.
That means tire fitment is driven by wheel setup, not by sub-model name by itself. Owners should confirm the current wheel diameter before selecting a tire, especially if the vehicle was purchased used or has seen wheel changes. Once the wheel size is verified, the decision becomes comparing the available radial tire options within the correct fitment.
Choosing the Right Tire
What should I consider when choosing a tire for a 2021 Audi Trucks Q5 PHEV?
Start with the correct primary size for the wheel on the vehicle: 235/55R19 for a 19-inch rim or 255/45R20 for a 20-inch rim. From there, compare construction details, rim-width compatibility where stated, sidewall treatment, tire series, and any load information included with the individual tire.
The best choice depends on how the Q5 PHEV is used and how you want it to look. Some buyers simply want a clean blackwall radial, while others may prefer a more distinctive 20-inch presentation such as raised white letter or redline. Matching the tire to the actual wheel package and intended road use keeps the selection practical.
What sidewall styles are available for 2021 Audi Trucks Q5 PHEV tires?
The visible 255/45R20 product assortment includes blackwall, RWL, and redline sidewall styles. Blackwall appears across multiple tires, while Pro-Trac Street Pro III adds RWL and redline choices for buyers who want a more expressive sidewall treatment.
Sidewall style does not change the need to stay with the correct tire size and wheel diameter, but it can strongly affect the vehicle's overall appearance. A blackwall keeps a contemporary understated look, while RWL or redline adds more visual character. Before choosing by appearance alone, confirm that the tire's fitment and wheel compatibility still suit the vehicle.
What brands offer tires for the 2021 Audi Trucks Q5 PHEV?
The available 255/45R20 tires for the 2021 Audi Trucks Q5 PHEV include offerings from BFGoodrich, Nitto, and Pro-Trac. Those brands appear across several product series, giving buyers more than one path if they are comparing style and specification within the same basic fitment.
Brand should be part of the decision, but not the only factor. It still makes sense to compare the exact tire series, sidewall style, rim-width fitment where stated, and other product characteristics tied to that specific tire. Staying focused on the correct size for the wheel on the vehicle is more important than choosing by brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2021 Audi Trucks Q5 PHEV?
A period-style decision is less relevant for a 2021 Audi Trucks Q5 PHEV than it would be for an older collector vehicle, since this model uses modern metric radial sizes. The starting point is still the correct fitment for the wheel diameter on the vehicle: 235/55R19 or 255/45R20.
Appearance choice matters most within the 20-inch fitment shown here, where blackwall, RWL, and redline sidewall treatments are available. A cleaner contemporary presentation usually points toward blackwall, while RWL or redline creates a more customized look. The right choice depends on whether the goal is understated factory-inspired style or a more personalized visual statement.
How does tire construction affect the appearance of a restored 2021 Audi Trucks Q5 PHEV?
Tire construction is straightforward on a 2021 Audi Trucks Q5 PHEV because the primary fitments are radial, not bias-ply. The appearance difference here comes less from construction type and more from the overall tire size and the sidewall treatment chosen within the available radial options.
That makes wheel diameter and sidewall style the main visual decisions. A 19-inch setup and a 20-inch setup can present the vehicle differently, and sidewall details such as blackwall, RWL, or redline further shape the finished look. Keeping the correct fitment first prevents appearance-driven choices from creating avoidable wheel or clearance issues.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Audi Trucks Q5 PHEV?
Yes, modifications can affect tire fitment on a 2021 Audi Trucks Q5 PHEV even when the basic tire size looks correct. Aftermarket wheels, altered wheel widths, suspension changes, lowering, or body modifications can change how a 235/55R19 or 255/45R20 tire sits in the wheel opening.
The safest approach is to verify the actual wheel diameter, wheel width, and available clearance on the vehicle as it sits today. Steering clearance, suspension travel, and fender room all matter once a vehicle has moved away from its original setup. Those checks are especially important before switching between 19-inch and 20-inch wheel packages.
What should I inspect before driving a 2021 Audi Trucks Q5 PHEV on new tires?
Before road use, inspect the wheels for damage, confirm the tire size matches the installed rim diameter, and make sure each tire is seated and inflated properly. It also helps to look over the suspension and alignment condition, since uneven wear or handling concerns can appear quickly on a vehicle with fresh tires.
A short visual check should also cover sidewall damage, cuts, punctures, and any sign of rubbing once the vehicle is back on the ground. After the first drive, recheck inflation and look for clearance issues at full steering lock. A new tire can only perform as intended when the wheel, suspension, and vehicle setup are all in good order.
What should I check before a longer drive in a 2021 Audi Trucks Q5 PHEV?
Before a longer drive, confirm that the 2021 Audi Trucks Q5 PHEV is on the correct tire size for its wheels and that tire pressures are set consistently. A quick inspection for tread condition, visible cuts, punctures, bulges, and uneven wear can catch problems that are easy to miss during routine local driving.
Longer trips also make it worthwhile to check for slow air loss and to confirm nothing is contacting the tire under steering or suspension movement. Vehicles that have aftermarket wheels or recent suspension work deserve extra attention here. A careful pre-drive inspection helps the tire, wheel, and vehicle package work together as intended on the road.
