2025 Audi A5 Sportback (All-New) Tires

The 2025 Audi A5 Sportback (All-New) uses two primary tire sizes: 235/45R18 and 245/40R19. Both are radial fitments, and both appear across the Premium, Premium Plus, and Prestige sub-models, so the deciding factor is the wheel package on the car rather than the trim name alone.

The practical step is to confirm whether the car has 18-inch or 19-inch wheels before selecting a tire. The two sizes are tied to different rim diameters, so the correct choice comes from the actual wheel installed, especially if the car has been optioned differently or fitted with replacement wheels.

A 2025 Audi A5 Sportback (All-New) uses either an 18-inch or 19-inch rim, depending on which tire size is on the car. The 235/45R18 tire goes with an 18-inch rim, while the 245/40R19 tire goes with a 19-inch rim.

Rim diameter should be confirmed before looking at any tire series or brand choice because a tire must match the wheel diameter exactly. It also helps to verify wheel width, particularly on a car that may have aftermarket wheels, since the available tires in these sizes are matched to specific rim-width ranges.

Premium, Premium Plus, and Prestige share the same overall tire-size coverage on the 2025 Audi A5 Sportback (All-New). Each of those sub-models can use either 235/45R18 or 245/40R19, so there is no trim-exclusive tire size in this group.

That makes wheel confirmation more important than sub-model name when replacing tires. A buyer should check the tire sidewall or the wheel itself to confirm whether the car is on the 18-inch or 19-inch setup, then compare the available radial options in the matching size instead of assuming trim level settles the question.

Start with the correct size and wheel diameter: 235/45R18 for 18-inch wheels or 245/40R19 for 19-inch wheels. From there, the main considerations are tire series, rim-width compatibility, load specification where stated, and whether the car is used more as a daily-driven sportback or as a sharper road-performance setup.

The available choices stay within blackwall radial designs, so the comparison is more about tire character than sidewall appearance. It is worth checking the actual wheel width on the car and comparing it with the approved rim-width range for the tire, especially if replacement wheels have been installed since new.

The available tires for the 2025 Audi A5 Sportback (All-New) are from BFGoodrich in both primary sizes, 235/45R18 and 245/40R19. Within those sizes, the lineup includes several g-Force series options rather than a mix of multiple brands.

That means the real comparison is within the BFGoodrich range, focusing on which series best matches the car’s use and wheel setup. Looking at the specific tire series, the approved rim-width range, and any stated load figure is more useful here than trying to compare brand personalities across a broader catalog.

Three tire series are available for the 2025 Audi A5 Sportback (All-New) in its covered sizes: g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. Those series appear within the 235/45R18 and 245/40R19 fitments, giving the buyer more than one way to stay within the correct size.

Choosing between them comes down to the role the car plays and the exact wheel setup already in place. Once size is confirmed, compare the series names alongside blackwall styling, rim-width specification, and any stated load details so the selected tire matches both the wheel and the driving expectations for the car.

A period-style approach is less about vintage presentation on a 2025 Audi A5 Sportback (All-New) and more about staying faithful to the car’s original visual intent. That usually means keeping the correct modern radial size for the installed wheel package, either 235/45R18 or 245/40R19, rather than experimenting with alternate diameters.

Since the available tires are blackwall performance-oriented designs, appearance differences come more from the tire series than from classic sidewall treatments. Buyers trying to preserve the car’s intended look should confirm the actual wheel package first, then choose a tire that maintains the proper proportions and contemporary sportback stance.

Correct tire fitment matters because the 2025 Audi A5 Sportback (All-New) was designed around specific modern radial sizes and wheel diameters. Using 235/45R18 on an 18-inch wheel or 245/40R19 on a 19-inch wheel helps preserve the car’s intended proportions, stance, and overall presentation.

A preservation-minded owner should avoid assuming that a different diameter or profile will look the same once mounted. Wheel width, tire shape, and overall visual balance all affect the final result, so checking the exact wheel setup and staying within the proper fitment framework is just as important as the tire brand or series.

Yes, modifications can affect tire fitment on a 2025 Audi A5 Sportback (All-New), even when the tire size itself is correct. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, or body changes can all influence how a 235/45R18 or 245/40R19 tire sits and clears under load or at full steering lock.

A car with changes from stock should have its wheel diameter, wheel width, and clearance checked before replacement tires are chosen. It is also smart to inspect for rubbing marks near the inner fender, suspension, and steering components so the next tire matches the actual setup rather than the original package alone.

Before driving on new tires, confirm that the installed size matches the wheel package, the tires are inflated properly, and there is no visible damage such as cuts, bulges, or mounting damage. Lug torque, valve condition, and general wheel condition also deserve attention before regular road use begins.

A short visual check after installation can prevent avoidable issues. Look for even bead seating, verify that the tire clears suspension and bodywork through the steering range, and recheck pressure after the first drives. Any vibration, pull, or rubbing sound should be addressed before putting more miles on the car.

Before a longer drive, inspect tread condition, sidewalls, inflation pressure, and any signs of air loss on the 2025 Audi A5 Sportback (All-New). It also helps to confirm that all four tires are the correct size for the wheel package in use and that there is no visible uneven wear developing.

Longer trips put more emphasis on consistency across the full set, so pay attention to vibration, steering feel, and how the car tracks at speed. A quick check of wheel condition and tire age is worthwhile too, especially if the car sits for stretches between drives or has recently had a wheel or suspension change.