Audi S5 B9 (2018-2025) Wheel Fitment Guide
The Audi S5 B9 uses a 5×112 bolt pattern, a 66.5mm center bore and M14×1.5 ball-seat lug bolts, with square factory wheels at ET29 on the 18-inch, ET32 on the 19-inch and ET34 on the 20-inch. This guide covers US-market 2018–2025 S5 Coupe, Cabriolet and Sportback models: factory wheels, documented 18- to 20-inch builds, and how far each setup sits outside stock.
About this guide: Fitment data is compiled from S5 owner builds on Audizine and owner-submitted build galleries, plus customer cars in wheel-maker fitment galleries, cross-checked against vendor fitment documentation. Use it as research for your build; ride height, tires, and alignment are still your installer's call.
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OEM Setups
Factory Wheel & Tire Configurations
Every B9 S5 shares the hub hardware below, and every factory wheel is square. Cars through 2021 came standard on 18×8.5 ET29 wheels with 245/40R18 tires; from 2022 the 19×8.5 ET32 wheel on 255/35R19 is standard. Optional 20s are 20×9 ET34 on 265/30R20. Those three wheels are the reference for every "mm out" figure below.
Audi S5 B9 Hub & Hardware Specs
All trims — 2018-2025
Bolt Pattern5×112
Center Bore66.5mm
Fastener TypeLug Bolts
Thread PitchM14×1.5
Seat TypeBall (radius) seat
Torque Spec89 lb-ft (120 Nm)
Factory OffsetET29 (18″), ET32 (19″), ET34 (20″); front and rear
Brake System350mm front with six-piston calipers, all trims
19″ 5-Double-Arm
Standard · 2022–2025
Front Wheel19×8.5 ET32
Rear Wheel19×8.5 ET32
Front Tire255/35R19
Rear Tire255/35R19
ConstructionAluminum Alloy
Applies ToS5 Coupe, Cabriolet and Sportback MY2020–2025 (optional 2020–2021)
Audi of America made 19-inch wheels standard on the S5 for 2022, and this bi-color 5-double-arm design is the one on later build sheets, on summer tires. Replacement-wheel sellers list it as 8W0601025FN, 19×8.5 ET32, option code 42D. It's the reference wheel for the 19-inch cards below and a common winter-tire size.
18″ 5-Double-Spoke-Star (Audi Sport)
Standard · 2018–2019
Front Wheel18×8.5 ET29
Rear Wheel18×8.5 ET29
Front Tire245/40R18
Rear Tire245/40R18
ConstructionAluminum Alloy
Applies ToS5 Coupe, Cabriolet and Sportback MY2018–2019
Audi of America's launch release lists the 18-inch Audi Sport 5-double-spoke-star wheel as standard on the S5, on summer performance tires, and the 2019 lineup sheet keeps it. Replacement sellers list it as 8W0601025DE, 18×8.5 ET29. It's the reference wheel for the 18-inch cards in the aftermarket section.
18″ 5-Double-Spoke
Standard · 2020–2021
Front Wheel18×8.5 ET29
Rear Wheel18×8.5 ET29
Front Tire245/40R18
Rear Tire245/40R18
ConstructionAluminum Alloy
Applies ToS5 Coupe and Sportback MY2020–2021
The standard wheel after the 2020 facelift, on summer tires, until 19s became standard for 2022. Used-wheel sellers list it as 8W0601025FL, 18×8.5 ET29, the same size and offset as the launch wheel, so the 18-inch figures below apply to both. Check the stamp on a spoke if you're unsure which wheel you have.
19″ 5-Spoke-Cavo
Optional · 2018–2019
Front Wheel19×8.5 ET32
Rear Wheel19×8.5 ET32
Front Tire255/35R19
Rear Tire255/35R19
ConstructionAluminum Alloy
Applies ToS5 Coupe, Cabriolet and Sportback MY2018–2019
The launch-era 19-inch option in a contrasting gray and polished finish, part of the 19-inch wheel package on 2018–2019 cars. Replacement sellers list it as 8W0601025DC and DF, both 19×8.5 ET32. That's the same position as the later 5-double-arm wheel, so the 19-inch figures below apply to either design.
20″ 5-Arm-Rotor
Optional · 2018–2019
Front Wheel20×9 ET34
Rear Wheel20×9 ET34
Front Tire265/30R20
Rear Tire265/30R20
ConstructionAluminum Alloy
Applies ToS5 Coupe and Sportback (Black optic), Cabriolet (20-inch package) MY2018–2019
Audi Sport's 20-inch 5-arm-rotor wheel in matte titanium came with the Black optic package on 2018–2019 Coupes and Sportbacks and the 20-inch wheel package on Cabriolets. Replacement sellers list it as 8W0601025CF, 20×9 ET34, and it's the reference wheel for the 20-inch cards in the aftermarket section below.
20″ 5-V-Spoke-Star
Optional · 2020–2023
Front Wheel20×9 ET34
Rear Wheel20×9 ET34
Front Tire265/30R20
Rear Tire265/30R20
ConstructionAluminum Alloy
Applies ToS5 Coupe, Cabriolet and Sportback MY2020–2023
A matte titanium 20-inch option on 2020-and-later Prestige cars, on summer tires. Replacement sellers list it as 8W0601025EG, 20×9 ET34, and place it on 2020–2023 S5s. It shares the size and offset of every other factory S5 20, so the 20-inch figures below read the same for it.
20″ 5-Twin-Spoke Polygon
Optional · Black optic plus 2020–2025
Front Wheel20×9 ET34
Rear Wheel20×9 ET34
Front Tire265/30R20
Rear Tire265/30R20
ConstructionAluminum Alloy
Applies ToS5 Coupe and Sportback MY2020–2025 with Black optic plus
The 20-inch wheel in the Black optic plus package from the 2020 facelift through the last 2025 Sportbacks, in a bi-color finish. Replacement sellers list it as 8W0601025EQ, 20×9 ET34, option code 45Y. Owners commonly add 5–10mm spacers to these wheels, and one such build appears on the 20×9 card below.
18″ 10-Parallel-Spoke Winter
Accessory · Winter
Front Wheel18×8 ET31
Rear Wheel18×8 ET31
Front Tire245/40R18
Rear Tire245/40R18
ConstructionAluminum Alloy
Applies ToS5 Coupe, Cabriolet and Sportback, all years (Audi accessory)
Audi's accessory winter wheel for the B9 A5 and S5 family, sold bare (8W0071498E) or as a complete wheel on Pirelli Winter Sottozero 3 tires. Audi lists it at 8×18 ET31, approved for snow chains. It sits about 8mm inside the factory 18-inch wheel, which suits narrow winter tires.
Aftermarket Options
Aftermarket Wheel & Tire Configurations
Each card below is one aftermarket wheel size and each row on its ladder is one documented build at its effective offset. The Front and Rear figures show how far that build's outer lip sits outside the factory wheel of the same diameter: 8.5J ET29 for 18s, 8.5J ET32 for 19s and 9J ET34 for 20s. Every factory S5 wheel is square, and so is every documented build.
| Setup | Tires (front · rear) | Stance | Fit | Drivetrain | Sources |
|---|---|---|---|---|---|
| Square — same size all four corners | |||||
| 20×10 square ★ET25–33 | Varies by build | ●●●●● | Bolt-on · Lowered · May rub | AWD only | 13 |
| 19×9 squareET25–35 | Varies by build | ●●●●● | Bolt-on · Lowered | AWD only | 7 |
| 20×9 squareET24–35 | Varies by build | ●●●●● | Bolt-on · Lowered | AWD only | 10 |
| 19×8.5 squareET24–34 | Varies by build | ●●●●● | Bolt-on | AWD only | 4 |
| 18×8.5 squareET20–35 | 245/40R18 · 245/40R18 | ●●●●● | Lowered · Not reported | AWD only | 2 |
| 19×9.5 squareET15–35 | Varies by build | ●●●●● | Bolt-on · Lowered · May rub | AWD only | 12 |
| 18×9 squareET25 | 255/40R18 · 255/40R18 | ●●●●● | Bolt-on | AWD only | 3 |
| 19×10 squareET27–38 | Varies by build | ●●●●● | Bolt-on · Lowered · Mods may be needed | AWD only | 4 |
| 20×10.5 squareET25–35 | Varies by build | ●●●●● | Bolt-on · Lowered · May rub · Mods may be needed | AWD only | 12 |
Tap a setup to jump to its full card. Fit: Bolt-on = documented at stock ride height with no fender work reported · Lowered = documented on lowering springs or coilovers · Not reported = owners didn't say. Sources = owner builds (including customer cars in vendor galleries) and vendor fitment-guide setups documented on that card.
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Platform-specific fitment notes — Audi S5 B9
Front fender liner and upper control arms.
The S5's fenders are narrower than the RS5's, so RS5 specs sit further out on an S5. An owner on 20×10 ET27 with 275s reports light rubbing at the top of the front fender liner, even with its screw removed. On 10-inch wheels, a vendor notes some wide-shouldered tires need a 3mm front spacer to clear the upper control arms.
Brakes and 18-inch wheels.
Every S5 has 350mm front brakes with six-piston calipers. One owner measured about 5mm between the factory 19s and the calipers, and another was told a 19×9.5 design needed ET20 rather than ET25 to clear them. 18-inch builds are documented, but spoke shape at the caliper varies, so tell us your car when you order.
Lug bolts.
The factory bolts are M14×1.5 with a ball (radius) seat. FMB machines S5 wheels for 60° conical-seat bolts by default, so a new set runs conical bolts of the correct length. If you want to keep your factory ball-seat bolts, tell us when you order; otherwise the wheels are machined for conical.
Square Setup
Most Popular
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
20×10 (Front and Rear)
Documented ET25 – ET33
Documented offsets
Lip position vs. stock · F 20″ 9J ET34 · R 20″ 9J ET34
ET33
Front14mm outRear14mm out
ET30
Front17mm outRear17mm out
ET30 / ET27
Front17mm outRear20mm out
ET28
Front19mm outRear19mm out
ET27
Front20mm outRear20mm out
ET25
Front22mm outRear22mm out
Sources
Well-documented
12 community
1 vendor
The S5's most-documented aftermarket size. ET30 on 275/30R20 is the spec owners and the forum's vendor point to first, and ET33 with 285s sits a little further in. ET28 is documented at stock height on three cars; at ET25–27, lowered owners report poke or light rubbing at the top of the front liner.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
19×9 (Front and Rear)
Documented ET25 – ET35
Documented offsets
Lip position vs. stock · F 19″ 8.5J ET32 · R 19″ 8.5J ET32
ET35
Front3mm outRear3mm out
ET32
Front6mm outRear6mm out
ET28
Front10mm outRear10mm out
ET27
Front11mm outRear11mm out
ET25
Front13mm outRear13mm out
Sources
Strongly documented
5 community
2 vendor
Half an inch wider than the factory 19 and the easiest step up: 255/35R19 or 265/35R19 tires and no fender work at stock height. ET32 keeps the factory face position plus the extra width, and ET25–28 brings the lip out about a centimeter. A vendor lists ET32 as working with the factory ball-seat bolts.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
20×9 (Front and Rear)
Documented ET24 – ET35
Documented offsets
Lip position vs. stock · F 20″ 9J ET34 · R 20″ 9J ET34
ET35
Front1mm inRear1mm in
ET32
Front2mm outRear2mm out
ET29 / ET24
Front5mm outRear10mm out
ET27
Front7mm outRear7mm out
ET26
Front8mm outRear8mm out
ET25
Front9mm outRear9mm out
Sources
Well-documented
9 community
1 vendor
The factory 20-inch width with less offset. Factory 20s are ET34, so ET25 moves the face out 9mm and is the most common spec, on 265/30R20 or 275/30R20. Factory RS5 20s at ET26 fit the same way, and owners on the stock wheels reach similar positions with 5–10mm spacers.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
19×8.5 (Front and Rear)
Documented ET24 – ET34
Documented offsets
Lip position vs. stock · F 19″ 8.5J ET32 · R 19″ 8.5J ET32
ET34
Front2mm inRear2mm in
ET32
Front0mm outRear0mm out
ET25
Front7mm outRear7mm out
ET24
Front8mm outRear8mm out
Sources
Well-documented
4 community
The factory 19-inch width, documented only at stock height. ET32–34 matches the factory wheel, a common pick for a second set or winter wheels. ET24–25 brings the face out about 7–8mm on the same 255/35R19 tires, and one owner fits 265s. Every build here reports no rubbing.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
18×8.5 (Front and Rear)
Documented ET20 – ET35
Documented offsets
Lip position vs. stock · F 18″ 8.5J ET29 · R 18″ 8.5J ET29
ET35
Front6mm inRear6mm in
ET23 / ET20
Front6mm outRear9mm out
Sources
Documented
2 community
An 18-inch winter size on 245/40R18, the same width as the 2018–2021 standard wheel. ET35 sits 6mm inside stock, and the owner called it sunken. A lowered 2025 Sportback runs the same wheel on 12mm front and 15mm rear spacers. Check caliper clearance before ordering any 18.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
19×9.5 (Front and Rear)
Documented ET15 – ET35
Documented offsets
Lip position vs. stock · F 19″ 8.5J ET32 · R 19″ 8.5J ET32
ET35
Front10mm outRear10mm out
ET33
Front12mm outRear12mm out
ET28
Front17mm outRear17mm out
ET27 / ET25
Front18mm outRear20mm out
ET25
Front20mm outRear20mm out
ET25 / ET15
Front20mm outRear30mm out
ET23
Front22mm outRear22mm out
ET22
Front23mm outRear23mm out
Sources
Well-documented
11 community
1 vendor
The widest common 19. ET25 on 265/35R19 is the most-documented spec, about 2cm outside the factory 19, and owners run it at stock height and lowered. ET33–35 tucks in for a 255 or narrower tire. At ET22 one stock-height owner reports a slight rub at full lock.
Stance
flush → poke
OEM
Aggressive
Wheels (All 4)
18×9 ET25 (Front and Rear)
Documented build
Lip position vs. stock · F 18″ 8.5J ET29 · R 18″ 8.5J ET29
ET25
Front10mm outRear10mm out
Sources
Well-documented
2 community
1 vendor
The track and winter 18: a full inch wider than the factory 18 on 255/40R18, which puts more sidewall on the car. A vendor lists ET25 as clearing the factory 350mm front brakes, and two owners run it, one on ET40 wheels with 15mm spacers. Spoke clearance at the caliper varies by design.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
19×10 (Front and Rear)
Documented ET27 – ET38
Documented offsets
Lip position vs. stock · F 19″ 8.5J ET32 · R 19″ 8.5J ET32
ET38
Front13mm outRear13mm out
ET35
Front16mm outRear16mm out
ET30
Front21mm outRear21mm out
ET27
Front24mm outRear24mm out
Sources
Well-documented
3 community
1 vendor
The widest documented 19, for a 275/35R19 tire. A vendor lists ET38 as fitting at stock height, though some wide-shouldered tires need a 3mm front spacer to clear the upper control arms. Owners run ET35 on 265/40R19 unlowered and ET27 on 275s; one lowered car had its fenders rolled.
Stance range
flush → poke
OEM
Aggressive
Wheels (All 4)
20×10.5 (Front and Rear)
Documented ET25 – ET35
Documented offsets
Lip position vs. stock · F 20″ 9J ET34 · R 20″ 9J ET34
ET35
Front18mm outRear18mm out
ET30
Front23mm outRear23mm out
ET28
Front25mm outRear25mm out
ET27
Front26mm outRear26mm out
ET25
Front28mm outRear28mm out
Sources
Well-documented
11 community
1 vendor
The widest documented S5 size, on 275/30R20 or 285/30R20. ET35 sits about 18mm outside the factory 20 and is documented at stock height and lowered; one air-ride car rolled its fenders. ET30 and lower is mostly run on lowering springs, and at ET27 the owner lists the stance as poke.
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Our Process
What happens when you build with FMB
Built to the exact spec, not the closest one on a shelf. The setups above come from real S5 builds, and we CNC-machine every wheel to them directly. If a build needs a spacer to reach its offset, we machine that offset into the wheel instead.
- Choose your setup.
This guide is built to give you what you need to pick a spec with confidence: documented S5 builds, tire sizes, and how each one fits. If you still have questions, we're happy to help before you order.
- Engineering verification.
Our manufacturing partner confirms wheel specs, including bolt pattern, center bore, brake caliper clearance, backspacing and load rating.
- Render approval.
You approve the design and final specs before we move forward with production.
Our fitment guarantee
Every set is guaranteed to mount on your S5: 5×112 bolt pattern, bored to the 66.5mm hub, machined for 60° conical lug bolts (or your factory ball-seat bolts if you request it when ordering), and made to the exact width and offset you approved.
How a setup sits on your car also depends on ride height, tires and alignment, so choose with your plans in mind.
Start your S5 build →Common Questions
FAQ — Frequently Asked Questions
What wheels come stock on the Audi S5 B9?
Every B9 S5 runs square wheels. 2018–2021 cars came standard on 18×8.5 ET29 wheels with 245/40R18 tires, and 19×8.5 ET32 wheels on 255/35R19 became standard for 2022. Optional 20s on every year are 20×9 ET34 on 265/30R20. Check the stamp on a spoke if you're unsure which wheel you have.
What are the S5's bolt pattern, center bore and lug specs?
The S5 uses a 5×112 pattern, a 66.5mm bore and M14×1.5 ball-seat lug bolts, torqued to 120 Nm (89 lb-ft) per Audi's A5-family owner's manual. FMB machines S5 wheels for 60° conical-seat bolts by default, so a new set runs conical bolts of the correct length. If you want to keep your factory ball-seat bolts, tell us when you order; otherwise the wheels are machined for conical.
What size wheels fit an S5 at stock ride height?
Owners most often run 20×10 at ET28–ET33 on 275/30R20 or 285/30R20 with no rubbing reported at stock height. 19×9 at ET25–ET35 and 19×9.5 at ET25–ET35 on 255 or 265 tires suit owners who want more sidewall. 20×10.5 at ET30–ET35 works at stock height too, but most lower-offset builds are lowered.
What's the difference between flush and aggressive, and how do I read the ladder?
Each card is one wheel size and each row is one documented build at its effective offset. The Front and Rear figures show how far the outer lip sits outside the factory wheel of the same diameter. Most S5 builds sit 10–20mm outside stock; a 20×10.5 ET25 on lowering springs sits 28mm out, the aggressive end.
Do aftermarket wheels clear the S5's brakes?
Every S5 has 350mm front brakes with six-piston calipers. A vendor lists its 18- and 19-inch S5 sizes as clearing them, and 18-inch builds are documented. Clearance depends on spoke shape: an owner measured about 5mm on the factory 19s, and one wheel maker asked for a lower offset on a 19×9.5. Tell us your car before production.
Should I run a square or staggered setup on the S5?
Audi fits square wheels on every S5, and we found only one staggered B9 S5 build, too few to list. Square sets let you rotate tires and keep the quattro system on one rolling diameter. Owners who want more rear tire usually run the same wide size on all four corners instead.
Does tire size matter for the S5's quattro drive?
Yes. Keep front and rear tires at the same rolling diameter, and replace them as a set where possible. Staggered configurations can produce front-to-rear rolling diameter mismatches that may stress the quattro system over time. The math should be checked against your owner manual before committing — we document tire dimensions on every card; verifying compatibility is your responsibility.
Can I use wheel spacers on an S5?
Many S5 owners run 5–15mm spacers, on factory 20s or on aftermarket wheels with a high offset. Any spacer needs hub-centric rings and lug bolts longer by its thickness. Spacer builds appear here at their effective offset, and FMB machines that offset into the wheel, so a new set needs no spacer.
What winter wheels fit the S5?
Owners commonly fit winter tires on the factory 19×8.5 ET32 wheels in 255/35R19 or on 18-inch sets. Audi's accessory winter wheel is 18×8 ET31 on 245/40R18. Documented aftermarket winter sets include 18×8.5 at ET35, about 6mm inside the factory 18, and 18×9 ET25 on 255/40R18.
Which S5 model years does this guide cover?
US-market B9 S5 Coupes and Cabriolets for 2018–2024, and S5 Sportbacks for 2018–2025. The 2020 facelift and the 2022 switch to standard 19s kept the same hub and wheel offsets. The new S5 sedan that arrived for 2025 is a different generation on a new platform and isn't covered here.
Can I put RS5 wheels on an S5, or S5 wheels on an RS5?
They bolt on, with the same 5×112 pattern, 66.5mm bore and lug bolts. The RS5's fenders are wider, so RS5 factory 20s sit 8–12mm further out on an S5, and owners run them on factory-size tires. S5 20s on an RS5 look tucked. Our RS5 B9 guide covers that car's setups.
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