The 2018 Audi RS5 sits in the modern high-performance grand touring space, combining Audi coupe refinement with the sharper pace and road manners expected from an RS model. It is the kind of car where wheel and tire choice affect both stance and responsiveness, so fitment details matter. The 2018 Audi RS5 uses radial tires in two primary sizes, 265/35R19 and 275/30R20, tied to 19-inch and 20-inch wheel setups. Available choices center on blackwall performance radials from BFGoodrich and Nitto across distinct tire series. The key decision is confirming which wheel package is on the car before comparing tire series, construction details, and road-use priorities.
Which Tire Size Is Right for The 2018 Audi RS5
The 2018 Audi RS5 uses two primary tire sizes, and the first step is confirming whether the car is on 19-inch or 20-inch wheels. Both sizes are radial metric fitments, and both appear across the covered RS5 sub-models, so wheel diameter matters more than trim name when selecting a tire. Once that is confirmed, the decision shifts to available tire series, brand choice, and matching the tire to the car's intended road use.
A 265/35R19 tire uses a 265-millimeter nominal section width, a 35-series aspect ratio, radial construction, and a 19-inch rim. On the 2018 Audi RS5, this size supports a modern low-profile performance fitment and corresponds to the 19-inch wheel setup. Available choices include blackwall radials from BFGoodrich and Nitto in series such as g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size is the right one to evaluate when the car remains on 19-inch wheels and the goal is balancing correct fitment with the preferred performance-oriented tire series.
A 275/30R20 tire uses a 275-millimeter nominal section width, a 30-series aspect ratio, radial construction, and a 20-inch rim. For the 2018 Audi RS5, this is the lower-profile 20-inch wheel fitment and should be chosen only when the car is actually equipped with 20-inch wheels. The available product selection in this size centers on a blackwall Nitto NT555 G2 radial. This size is the one to review when maintaining the existing 20-inch setup and confirming that wheel diameter, tire dimensions, and vehicle clearance all remain aligned.
Fitment is straightforward across the covered 2018 Audi RS5 sub-models because both share the same two tire-size paths. The important step is not choosing between trims, but confirming whether the car is on the 19-inch or 20-inch wheel setup before selecting a tire.
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2018 Audi RS5 Base
The 2018 Audi RS5 Base uses the same pair of radial tire sizes found across this fitment range, tied to either a 19-inch or 20-inch wheel package. Tire selection comes down to verifying the actual wheel diameter on the car, then comparing the available blackwall performance tire series in the correct size.
The 2018 Audi RS5 w/Dynamic Plus Pkg. follows the same tire-size pattern, with radial fitments available for both 19-inch and 20-inch wheel applications. That means the practical decision is still wheel confirmation first, followed by choosing the tire series and specifications that suit the car's present setup and use.
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 2018 Audi RS5 Tires for Sale
Available 2018 Audi RS5 tires center on blackwall radial performance options in 265/35R19 and 275/30R20. BFGoodrich and Nitto appear in the 19-inch size across several tire series, while the 20-inch fitment currently focuses on Nitto's NT555 G2.
These FAQs focus on the exact tire sizes used on the 2018 Audi RS5, how the 19-inch and 20-inch setups differ, and what to compare when choosing performance-oriented radial tires for road use and fitment accuracy.
Tire Size & Fitment
What tire size fits a 2018 Audi RS5?
The 2018 Audi RS5 uses two primary tire sizes: 265/35R19 and 275/30R20. Both are radial metric fitments, and each one matches a different wheel diameter, so the correct choice depends on whether the car has 19-inch or 20-inch wheels.
That makes wheel confirmation the first step before comparing tires. A tire in the wrong rim diameter is not suitable, even if the overall proportions appear close, so checking the current wheel size on the car matters more than choosing by appearance or brand alone.
What size rim does a 2018 Audi RS5 use?
The 2018 Audi RS5 uses either a 19-inch or 20-inch rim, depending on which tire size is on the car. The 265/35R19 size pairs with a 19-inch rim, while the 275/30R20 size pairs with a 20-inch rim.
A quick look at the sidewall or the wheel itself usually settles the question, and that should happen before shopping by tread pattern or tire series. Once rim diameter is confirmed, compare the tire's width and fitment details against the actual wheel setup already on the car.
Do all 2018 Audi RS5 sub-models use the same tire size?
The covered 2018 Audi RS5 sub-models share the same two fitment paths rather than having different trim-specific tire sizes. Both the Base model and the RS5 w/Dynamic Plus Pkg. can use 265/35R19 or 275/30R20, depending on wheel diameter.
That means trim name alone does not settle the tire choice. The practical check is the wheel package currently on the car, especially if wheels have ever been changed, because the correct tire size follows the actual rim diameter and not just the sub-model badge.
Choosing the Right Tire
What should I consider when choosing a 265/35R19 tire for a 2018 Audi RS5?
Start with correct size, radial construction, and 19-inch wheel compatibility. In 265/35R19, the 2018 Audi RS5 has blackwall options from BFGoodrich and Nitto, with series choices that include g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2.
The next comparison points are product character and wheel compatibility details rather than fitment guesses. One 265/35R19 option includes a 9 to 10.5 inch rim-width range, so checking the actual wheel width on the car helps narrow the field before selecting a tire for everyday road use or more aggressive driving.
What brands offer tires for the 2018 Audi RS5?
Available tires for the 2018 Audi RS5 come from BFGoodrich and Nitto. BFGoodrich appears in the 265/35R19 fitment with more than one tire series, while Nitto appears in both 265/35R19 and 275/30R20 through the NT555 G2 line.
Brand should be considered alongside the actual size needed on the car, because the 19-inch and 20-inch fitments do not have the same product spread. Once the wheel diameter is confirmed, compare the available series in that exact size instead of assuming every brand offers both RS5 fitments.
What tire series are available for the 2018 Audi RS5?
The available tire series for the 2018 Audi RS5 include BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and Nitto NT555 G2. The broadest series choice appears in 265/35R19, while 275/30R20 currently centers on the Nitto NT555 G2.
Series matters because it helps distinguish the specific tire being considered within the correct size. Once the right wheel diameter is confirmed, comparing series can be more useful than comparing brand names alone, especially when deciding how closely the tire suits the car's road use and setup.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Audi RS5?
A period-style concern is less about vintage sidewall treatment on a 2018 Audi RS5 and more about keeping the correct modern low-profile proportions for the wheel package on the car. That means choosing either 265/35R19 or 275/30R20 in a radial construction that preserves the RS5's intended contemporary look.
Blackwall tires suit the available product range and keep the appearance consistent with this model's modern performance character. Buyers focused on preserving the car's original presentation should confirm the actual wheel setup first, then avoid changing tire diameter, profile, or wheel size without considering how that alters stance and visual balance.
Does correct tire fitment matter for a 2018 Audi RS5 restoration?
Correct tire fitment matters on a 2018 Audi RS5 because wheel diameter and tire profile strongly affect the way the car sits and the way the wheel openings are visually filled. The correct fitment path is 265/35R19 on 19-inch wheels or 275/30R20 on 20-inch wheels.
Even on a modern collector car, appearance and fitment accuracy go together. A tire that departs from the proper size family can change the car's look quickly, so restoration-minded owners usually start by matching the existing wheel package and then selecting the tire series that best suits the intended presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Audi RS5?
Yes, modifications can affect tire fitment on a 2018 Audi RS5 even when the tire size looks close to stock. Aftermarket wheels, changes in wheel width or offset, suspension lowering, and body or brake-related changes can all alter how a 265/35R19 or 275/30R20 tire sits in the car.
That is why the actual setup on the vehicle should be checked before replacing tires by size alone. Clearance at the fender, inner suspension area, and steering range matters, particularly on a low-profile performance fitment where small changes can have a noticeable effect on usable space.
What should I inspect before driving a 2018 Audi RS5 on new tires?
Before road use, inspect the wheels for the correct diameter, look for damage or irregular wear, and confirm the tires are mounted in the proper size for the car's wheel setup. It also helps to check inflation, valve condition, and whether there is any rubbing at full steering lock or through suspension travel.
A short initial drive is useful for catching vibration, pulling, or clearance issues early. Any RS5 that has had wheel, brake, or suspension changes deserves extra attention, because new tires can reveal fitment problems that were less obvious with the previous worn or differently sized set.
How often should tires on a 2018 Audi RS5 be inspected?
Tires on a 2018 Audi RS5 should be inspected regularly, not just when tread looks low. Low-profile performance tires deserve routine checks for uneven wear, sidewall cuts, punctures, air loss, and any signs of contact with suspension or body components.
Owners who drive the car spiritedly or only occasionally should be especially consistent about inspection. Cars that sit for longer periods can still develop pressure loss or age-related issues, so checking condition and inflation before longer drives helps keep the tire choice working as intended on the road.
