Audi S5 Tires

Audi S5 fitments in this range include 255/35R19 for 2008-2024, 245/40R18 for 2013-2021, 265/30R20 for 2013-2024, 245/40R19 for 2026, and 245/35R20 for 2026. Those sizes correspond to 19-inch, 18-inch, 20-inch, 19-inch, and 20-inch rims respectively. Several years carry more than one size at the same time, so the correct answer depends on the actual wheel package on the car.

The practical takeaway is that Audi S5 sizing is driven by wheel diameter first, then by the exact width-and-profile combination assigned to that package. Start by checking the tire sidewall already on the car and confirming the wheel diameter before you compare model year listings. That is especially important for 2013-2021 and again in 2026, where multiple fitments appear within the same year.

A 2013 Audi S5 can show 245/40R18, 255/35R19, and 265/30R20 because that year includes a rim-diameter split rather than a single universal tire size. The three listed sizes align with 18-inch, 19-inch, and 20-inch wheel packages. That means the year alone is not enough to identify the correct tire without looking at the actual wheels on the car.

This matters because a tire that fits one 2013 Audi S5 wheel diameter will not substitute for another without changing the wheel itself. The cleanest way to confirm the right fitment is to inspect the sidewall of the existing tire or measure the wheel diameter directly. If the car has changed hands or wheels have been swapped, original year-based assumptions can be misleading.

Audi S5 fitments in this range use 18-inch, 19-inch, and 20-inch rim diameters. The 19-inch size appears from 2008 onward, while 18-inch and 20-inch alternatives begin showing up in 2013, and the 2026 model year again splits between 19-inch and 20-inch sizes. Rim diameter is the non-negotiable starting point because every listed tire size is built around a specific wheel diameter.

Checking wheel diameter first prevents the most common ordering mistake on Audi S5 applications with multiple packages. Once the wheel diameter is confirmed, matching the exact width and aspect ratio is straightforward. If a car has aftermarket wheels, do not rely only on the factory year range; verify the wheels actually fitted to the car today.

A 2020 Audi S5 can use 245/40R18, 255/35R19, or 265/30R20, so the correct tire depends on the wheel package fitted to that specific car. Each of those sizes is tied to a different rim diameter, and none should be treated as interchangeable on the same wheel. The current tire sidewall and the wheel diameter are the quickest direct checks.

For a practical fitment check, compare the size stamped on the tire with the year listing and make sure the wheel diameter matches exactly. Then confirm the wheel width falls within the recommended range for the tire you are considering when that information is available. That approach is more reliable than choosing only by model year, especially on Audi S5s with optional wheel packages.

Audi S5 tire offerings here include blackwall across all covered sizes, with redline and RWL options appearing in 245/40R18. Blackwall is the dominant contemporary look in this range, while the redline and raised white letter treatments offer a more customized presentation. Those sidewall differences do not change the basic size requirements, but they do affect the finished look of the car.

If appearance matters as much as fitment, choose sidewall style after the correct tire size and rim diameter are confirmed. A blackwall usually suits a factory-style modern sport coupe presentation, while redline or RWL can push the car toward a more individual look. Because the sidewall options are size-specific, style choice may narrow once the correct wheel package is identified.

The brands represented for Audi S5 sizes here are BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. BFGoodrich appears across multiple 18-, 19-, and 20-inch applications, while Nitto appears in selected 18-inch and 20-inch sizes. M&H Racemaster and Pro-Trac are present in the 245/40R18 fitment, adding more specialized choices within that size.

Brand choice should come after you have settled the correct size, because the available lineup changes by fitment. A 19-inch Audi S5 may have a different brand mix than an 18-inch or 20-inch car, even within the same year. Once fitment is fixed, you can compare series, sidewall style, and intended use more meaningfully.

Audi S5 tire series represented here include g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, Nitto NT555 G2, Drag Radial, and Street Pro III. All are radial constructions, but they reflect different performance themes, from all-season and street-performance patterns to drag-oriented and style-focused offerings. The series available depend on the specific Audi S5 size, so not every fitment gets the same menu.

The practical choice comes down to how the car is used and which wheel package it carries. A regularly driven street car may point you toward one of the mainstream radial performance lines, while a more specialized build may lead you toward the drag or custom-style options available in 245/40R18. Keep the intended use aligned with the exact size rather than choosing a series first and trying to force fitment afterward.

An Audi S5 that sits for long periods should be stored on a clean, dry surface away from direct sunlight, ozone sources, and major temperature swings. Proper inflation before storage helps reduce flat spotting, especially on low-profile radial tires like the sizes used across this range. If the car will remain parked for an extended period, moving it periodically can help distribute the load across the tread.

Collector-minded care is about preserving both the tire and the wheel finish. Keeping the car clean, checking pressures before and after storage, and avoiding long-term parking on damp concrete all help the tires age more evenly. If the Audi S5 is stored seasonally, a quick inspection before returning it to the road is just as important as the storage routine itself.

Tires on an Audi S5 should be inspected regularly for pressure loss, sidewall damage, tread wear pattern changes, and any signs of impact damage from potholes or curbing. Low-profile performance sizes can show wear and damage sooner than taller sidewall tires because there is less sidewall cushion. A visual check every time the car is washed or driven after storage is a sensible baseline.

Regular inspection helps catch alignment, suspension, and inflation problems before they shorten tire life or affect how the Audi S5 drives. Pay close attention to inner shoulder wear on wider modern performance fitments, since that can go unnoticed without a deliberate look. Any vibration, pull, or sudden change in ride quality deserves an immediate inspection.

Audi S5 tires should be replaced when they show cracking, bulges, puncture damage in unsafe areas, repeated air loss, or age-related hardening, even if the tread depth still looks acceptable. Performance tires can lose the flexibility that makes them work properly long before they appear worn out. Visible condition and age both matter as much as remaining tread on a low-mileage enthusiast car.

The key point is that tread alone does not tell the whole story on an Audi S5 that may see occasional or seasonal use. If the car has sat extensively, a professional inspection is wise before high-speed driving, especially with older low-profile tires. Replacing aging tires in matched sets also helps preserve the balanced handling expected from the platform.

Audi S5 fitment in this range includes several size paths rather than a single original tire across all years. Early cars center on 255/35R19, while later years introduce 245/40R18 and 265/30R20 alternatives, and 2026 shows 245/40R19 and 245/35R20. The available product range here is entirely radial, which suits the modern performance character of the Audi S5.

For authenticity, the best reference is the specific year and wheel package the car left the factory with, not the broad model name alone. Window sticker information, factory manuals, and marque-specific records are the strongest checks when originality matters. That is especially important for years where multiple wheel diameters were offered at the same time.

Correct tire fitment can affect how an Audi S5 is viewed, particularly when the car is being presented as an original or carefully preserved example. The right size preserves the intended stance and wheel-to-tire relationship, while an incorrect profile or diameter can change the car’s appearance immediately. Even on modern collector cars, details like sidewall style and overall proportion are part of the presentation.

If the goal is preservation-level accuracy, match the tire size to the year and wheel package rather than choosing only by what will physically mount. Enthusiast judges and knowledgeable buyers often notice when the tire profile looks too tall, too short, or too wide for the wheels. Keeping the fitment correct also helps protect resale confidence for a well-kept Audi S5.

Blackwall is the primary sidewall style available across Audi S5 fitments in this range, and it is the most natural visual match for a factory-style restoration or preservation approach. Redline and RWL appear in 245/40R18, but those are more expressive styling choices than mainstream original-look fitments for this model. Sidewall style does not change the size requirement, but it can shift the character of the finished car noticeably.

A restoration-minded Audi S5 owner will usually want to settle on the correct wheel diameter and tire size first, then choose the sidewall style that fits the intended presentation. Blackwall keeps the look closest to the restrained modern sport coupe aesthetic most buyers expect. If the car is a custom build rather than an authenticity-focused example, the specialty sidewall options create room for a different visual statement.

The listed Audi S5 tires are modern radial products intended for road-going performance applications, but safe road use depends on matching the exact tire size to the wheel diameter and keeping the tires in sound condition. An 18-inch tire cannot safely substitute for a 19-inch or 20-inch wheel, and vice versa. Condition, age, inflation, and alignment all matter as much as the printed size.

For real-world use, inspect the tires carefully before sustained highway driving and make sure all four are appropriate for the way the Audi S5 will be used. A street-driven car benefits from a matched set with even wear and consistent construction. If the car has recently been purchased, a full tire and wheel inspection is a smart first step before pushing performance.

Before driving an Audi S5, check that the tire pressures are correct, the sidewalls are free of cuts or bulges, and the tread shows even wear without cords, splits, or severe shoulder wear. Confirm that the tire size on the car matches the wheel diameter actually fitted. On a low-profile performance application, pothole damage and bent wheels are also worth watching for.

Those checks help you catch the problems that most often affect drivability and safety on modern sport coupes. If the Audi S5 has been stored, inspect for flat spotting or pressure loss before driving at speed. Any vibration through the steering wheel, persistent pull, or visible wheel damage should be investigated before normal road use resumes.

A sensible road speed for an Audi S5 depends on the exact tire fitted, its condition, and whether all four tires are properly matched and inflated. The available sizes here are modern radial performance fitments, but safe speed is never determined by size alone. Age, wear, repairs, and storage history can reduce the margin even when the tread still appears usable.

The practical rule is to treat tire condition as the governing factor, especially on a car that may not be driven daily. Fresh, properly maintained matched tires allow the Audi S5 to be used more confidently than older tires of uncertain history. If there is any doubt about age or structural condition, keep speeds conservative until the tires have been inspected professionally.