2022 Audi S7 Wheel Interchange
Goal
You want to verify wheel and tire fitment for a 2022 Audi S7 and compare donor wheels using the on-page calculator at wheelinterchange.com. The problem I see in the bay is conflicting or partial specs that make confident decisions hard. The goal is to get from uncertainty to a safe, validated setup, with clear assumptions and checks.
Prerequisites
What we know about the 2022 Audi S7 from this page
The fitment data below may be partial or trim-dependent. Treat each value as a starting point and validate before purchase.
| Spec | Value | Notes |
|---|---|---|
| Bolt pattern | 5x112 | 5 studs on a 112 mm PCD |
| Center bore | 66.5 mm | Wheel bore must be equal or larger. Rings recommended if larger. |
| Thread size | M14 x 1.5 | Vehicle uses lug bolts, not nuts. Seat type must match the wheel. |
| Rim diameter | 19 in | May vary by trim or package |
| Rim width | 8.0 in | May vary by trim or package |
| Wheel offset | ET 27 mm | Controls inner clearance and outer poke |
| Backspacing | 5.06 in | Provided value - validate against width and offset |
| Tire size shown | 255/40 R20 | Tire diameter suggests a 20 in wheel - validate trim |
Assumption warning: the listed 19x8 ET27 wheel and the 255/40R20 tire do not match by diameter. This indicates mixed trim data. Use the calculator and OEM sources below to confirm your specific car’s baseline.
What you need on hand
- Access to your VIN, owner’s manual, and the door-jamb tire label
- One baseline measurement session of your current wheel and tire
- Basic shop tools and measuring aids
Helpful tools
- 1/2 inch torque wrench for accurate bolt torque
- Wheel hanger pin M14x1.5 for safer wheel installation
- Digital caliper to check center bore and spacer thickness
- Hub-centric rings 66.5 mm OD - choose ID to match your donor wheel bore
Step by step
1. Confirm your baseline
In the shop, I start with the vehicle itself. Read your current tire size from the sidewall and compare it to the driver door-jamb label. If they differ, treat the label as the OEM baseline and the mounted tire as a modification.
If you do not know your current wheel specs, look for markings on the wheel’s backpad or spoke channel. Typical format is diameter x width ET offset, for example 20x9 ET30. If markings are missing, measure width and use a straightedge to estimate backspacing, then use the calculator to reverse-solve offset. Record the bolt pattern, center bore, and thread size from the table above and validate in the owner’s manual or an Audi parts catalog using your VIN.
2. Set up the calculator on wheelinterchange.com
Open the on-page calculator. Under Installed on (your vehicle), select 2022 Audi S7. If the calculator shows a factory reference package, note it and keep it as the baseline for comparisons.
3. Enter the donor wheel
Under Wheels from (donor vehicle), enter the donor’s wheel specs or choose the donor vehicle if known. If the donor center bore is bigger than 66.5 mm, plan on hub-centric rings. If the donor bore is smaller than 66.5 mm, the wheel will not seat - do not force it.
4. Use Custom wheel size to fine tune
Adjust rim diameter, width, and offset in Custom wheel size to match the donor or the aftermarket option you are evaluating. Watch the calculator’s inner clearance and outer poke comparisons. The trade-off is simple: lower offset pushes the wheel outward and risks fender contact, higher offset pulls it inward and risks strut or liner contact.
5. Match the tire to the rim
Use Custom tire size to set section width and aspect ratio. The calculator updates overall tire diameter as you change rim diameter. Your constraint is keeping diameter change within your comfort and OEM limits for speedometer and clearance. If your baseline is 255/40R20 but you are evaluating a 19 inch wheel, the calculator will show how a 255/45R19 or similar option compares in diameter. Do not assume - validate changes against arch and liner clearance.
6. Check brake and spoke clearance
The S7 has large brakes. Spoke design matters as much as offset. If you have a template from the wheel maker, use it. If not, rely on the calculator for inner barrel clearance and plan a test fit to confirm spoke-to-caliper clearance.
7. Validate fasteners
Thread size is M14x1.5. Seat type must match the wheel seat profile. Many Audi OE wheels use ball seats, while many aftermarket wheels use cone seats. Compare the mating surfaces visually or consult the wheel maker. If you add spacers, ensure they are hub-centric and that bolt length provides adequate engagement. If the exact OEM engagement spec is unknown, target at least one bolt diameter of thread engagement as a conservative engineering assumption, then confirm in Audi service information.
8. Center bore and ringsWheel interchange calculator
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Installed on (your vehicle)
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