The 2010 Audi A5 arrived as a sleek modern grand touring coupe, blending Audi’s understated design language with a chassis that rewards precise road manners and everyday drivability. It sits in a segment where wheel and tire choice strongly influences both appearance and feel, especially on cars that may now wear factory-style wheels or later upgrades. For this exact model, tire fitment centers on two radial sizes: 245/40R18 and 255/35R19. That creates a straightforward but important decision between 18-inch and 19-inch wheel setups, with available choices in blackwall, redline, and raised white letter styles. The right selection starts with confirming the wheel package already on the car and matching the tire to the look and use you want.
Which Tire Size Is Right for The 2010 Audi A5
The 2010 Audi A5 uses two primary tire sizes, and the first thing to confirm is which wheel diameter your car has. Both fitments are radial, but one is built around an 18-inch rim and the other around a 19-inch rim. Since the A5 Cabriolet can use either size, the real decision is not only fitment but also which wheel setup, sidewall style, and product character best suit the car.
A 245/40R18 tire is a metric radial size with a 245-millimeter nominal section width, a 40-series aspect ratio, and fitment for an 18-inch rim. On the 2010 Audi A5, this size serves owners running the 18-inch wheel package and keeps the decision centered on radial construction rather than vintage bias-ply concerns. Available choices include blackwall performance-oriented options along with redline and RWL versions in the Pro-Trac Street Pro III series. This size is the one to evaluate if your A5 has 18-inch wheels and you want to compare modern performance styling against a more distinctive sidewall presentation.
A 255/35R19 tire is a metric radial size that uses a wider 255-millimeter nominal section width, a 35-series profile, and a 19-inch rim. For the 2010 Audi A5, it belongs to cars equipped with the 19-inch wheel setup, so wheel diameter confirmation comes before any product comparison. Current choices in this size focus on blackwall radial designs from BFGoodrich across several g-Force series. This is the size to review when the car already wears 19-inch wheels and the priority is staying with that wheel package while comparing available series and specifications.
Sub-model fitment is simple here because the covered 2010 Audi A5 Cabriolet can use the same two tire sizes as the core model. The important step is still confirming whether the car is on 18-inch or 19-inch wheels before choosing a tire.
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2010 Audi A5 Cabriolet
The 2010 Audi A5 Cabriolet uses the same radial tire-size path as the core A5, so the tire decision follows the wheel diameter already on the car. That makes wheel confirmation the key step, followed by choosing between blackwall-focused performance options or, in 18-inch fitment, more distinctive sidewall styling.
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 2010 Audi A5 Tires for Sale
Available 2010 Audi A5 tires center on 245/40R18 and 255/35R19 radial fitments from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Buyers can compare blackwall performance series across both sizes, while 245/40R18 also adds redline and RWL styling choices.
These 2010 Audi A5 tire FAQs focus on the two correct sizes, 18-inch versus 19-inch wheel fitment, available radial choices, sidewall options, and the checks worth making before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2010 Audi A5?
The 2010 Audi A5 uses two primary tire sizes: 245/40R18 and 255/35R19. Both are radial fitments, with 245/40R18 built for an 18-inch rim and 255/35R19 built for a 19-inch rim. The 2010 Audi A5 Cabriolet follows the same size pattern.
The key is matching the tire to the wheel package already on the car rather than choosing between the two sizes by preference alone. Checking the wheel diameter first prevents ordering the right overall type in the wrong size, and it also helps narrow the product choices, sidewall styles, and tire series that apply to your A5.
What size rim does a 2010 Audi A5 use?
A 2010 Audi A5 uses either an 18-inch or 19-inch rim, depending on the tire size on the car. The 245/40R18 fitment uses an 18-inch rim, while the 255/35R19 fitment uses a 19-inch rim. Both sizes are radial constructions.
Wheel diameter is the first fitment checkpoint because the two tire sizes are not meant for the same rim. Once the diameter is confirmed, it also helps to check wheel width against the tire’s intended range, especially if the car has aftermarket wheels or a staggered-looking setup that differs from the original wheel package.
Do all 2010 Audi A5 sub-models use the same tire size?
The covered 2010 Audi A5 Cabriolet can use the same two tire sizes as the 2010 Audi A5 core model: 245/40R18 and 255/35R19. That means fitment stays consistent at the sub-model level, with the actual choice determined by the wheel diameter on the car rather than by a unique Cabriolet-only tire size.
That consistency makes the buying process easier, but wheel verification still matters. A Cabriolet on 18-inch wheels needs the 245/40R18 fitment, while one on 19-inch wheels needs 255/35R19. If the car has changed hands or wears replacement wheels, checking the tire sidewall and the wheel itself is the safest way to confirm the right size.
Choosing the Right Tire
What should I consider when choosing a 245/40R18 tire for a 2010 Audi A5?
A 245/40R18 tire for a 2010 Audi A5 should first match the car’s 18-inch wheel setup. From there, the decision becomes one of product character and appearance, since this size is available in several radial series and includes blackwall, redline, and RWL sidewall treatments.
Comparing rim-width compatibility, load figures where shown, and the intended use of the tire helps narrow the field. A performance-oriented blackwall may suit a modern look, while redline or raised white letter styling creates a more customized presentation. The right choice depends on whether the car is being kept understated, personalized, or used in a more specialty role.
What sidewall styles are available for 2010 Audi A5 tires?
Sidewall style depends on tire size. In 245/40R18, available styles include blackwall, redline, and RWL. In 255/35R19, the available products shown are blackwall radials, so the sidewall presentation is more conventional and performance-oriented in that fitment.
That matters because sidewall styling changes the visual character of the car even when the tire size stays correct. An A5 with 18-inch wheels offers more room for appearance-driven choices, while a 19-inch setup is more focused on blackwall performance series. Matching sidewall style to the car’s wheels and overall look usually leads to a more cohesive result.
What brands offer tires for the 2010 Audi A5?
Tires for the 2010 Audi A5 are available from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, depending on the size. The 245/40R18 fitment has the broadest brand spread, while 255/35R19 is represented by BFGoodrich options in several g-Force series.
Brand matters less than choosing the correct size, wheel compatibility, and the kind of tire you want the car to wear. Some options lean toward mainstream blackwall performance styling, while others add more specialized character such as drag-oriented construction or distinctive sidewall treatments. It helps to compare the series and specifications within the exact size your A5 uses.
Restoration & Appearance
Which tire should I choose for a period-style 2010 Audi A5?
A period-style 2010 Audi A5 usually starts with the correct wheel diameter and one of the two proper radial sizes: 245/40R18 or 255/35R19. For a more restrained factory-era look, blackwall tires are the closest visual fit among the available options, especially in the 19-inch size where the assortment stays focused on blackwall designs.
The 18-inch size opens the door to redline and RWL styling, but those choices create a more personalized appearance than a stock-looking one. If authenticity matters beyond general period character, compare the tire’s sidewall treatment and overall presentation to original sales literature, photos, or marque-specific references before settling on a final look.
How does tire construction affect the appearance of a restored 2010 Audi A5?
Construction is simple on the 2010 Audi A5 because both primary fitments are radial. That means appearance differences come less from bias-ply-versus-radial concerns and more from wheel diameter, sidewall treatment, and the visual character of the tire series itself.
On this Audi, an 18-inch fitment with redline or RWL sidewalls gives the car a more customized look, while blackwall radials keep the presentation cleaner and closer to modern OEM-style expectations. Tire choice also affects stance visually, so it makes sense to judge the tire in the context of the wheel design and the car’s ride height.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2010 Audi A5?
Yes, modifications can affect tire fitment on a 2010 Audi A5 even when the tire size itself is correct. Aftermarket wheels, altered wheel widths, suspension changes, lowering, or body modifications can all change how a 245/40R18 or 255/35R19 tire sits in the wheelwell and clears surrounding components.
That is why tire selection should start with the car as it currently sits, not only how it left the factory. Checking wheel diameter, width, and clearance at full steering lock helps prevent surprises. Any A5 with non-stock wheels or ride height changes deserves a closer fitment review before a new set of tires is mounted.
What should I inspect before driving a 2010 Audi A5 on new tires?
Before driving a 2010 Audi A5 on new tires, inspect the wheels for damage, confirm the correct tire size for the wheel diameter, and make sure the tires are mounted and inflated properly. It is also smart to look over the suspension, alignment condition, and brake clearance so the new tires start life on a sound platform.
A short initial road check can reveal vibration, rubbing, or steering issues before they become bigger problems. Rechecking air pressure after the first drives is worthwhile, especially on a car that has sat for long periods. Clean bead seats, properly torqued lug hardware, and even tread contact all contribute to a smoother and more predictable result.
How often should tires on a 2010 Audi A5 be inspected?
Tires on a 2010 Audi A5 should be inspected regularly, not only at service intervals. Frequent checks for uneven wear, cuts, bulges, cracking, and slow air loss are worthwhile, especially on a car that may be driven seasonally or spend long stretches parked between outings.
Collector-minded or lightly used cars often age their tires before they wear them out, so tread depth alone does not tell the whole story. Looking over the sidewalls and contact patch before longer drives helps catch problems early. Consistent pressure checks and attention to alignment-related wear will also help either A5 tire size perform as intended.
