OEM wheel and tire fitment specs for the 2018 Audi RS 7, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2018 Audi RS 7, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 2018 Audi RS 7. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 97 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Center-bore records disagree (donor year-level hub 66.6 mm vs trim range 66.5–66.5 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change 8.18 mm, inner change -1.83 mm. This uses aggregated width/offset ranges, not a specific wheel.
Donor width/offset sits outside the known OEM envelope for this vehicle. Precomputed data suggested a spacer; geometry was re-checked against OEM envelope.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -8.18 mm, inner change 1.83 mm. This uses aggregated width/offset ranges, not a specific wheel.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -2.18 mm, inner change -4.18 mm. This uses aggregated width/offset ranges, not a specific wheel.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -0.17 mm, inner change -6.18 mm. This uses aggregated width/offset ranges, not a specific wheel.
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Bolt pattern5x112 · Same recorded PCD
Center bore66.5 mm · same recorded hub figure
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -1.17 mm, inner change -5.18 mm. This uses aggregated width/offset ranges, not a specific wheel.
Audi RS 7 Years With Compatible Wheels
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2018 Audi RS 7. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2018 Audi RS 7
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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5x112
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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66.5 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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20"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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9.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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35 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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-
Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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Diameter
The wheel diameter for which the tire is designed to fit.
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-
Tire Pressure
The recommended air pressure for safe and efficient driving.
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Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 2018 Audi RS 7
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
tl;dr
The 2018 Audi RS 7 uses 5x112, 66.5 mm center bore, and M14x1.5 lug bolts. The stock wheel is 20x9 ET35 with 275/35R20 tires. Use the on-page calculator to compare any donor wheel and tire to this baseline. Keep the setup hub-centric, clear the big brakes, and confirm load rating. When unsure, test fit before mounting tires.
Recommendation
As a technician, I treat the OEM set as the control. Build from there in small, measured steps.
Start with the baseline
Spec
2018 Audi RS 7 (OEM)
Bolt pattern
5x112
Center bore
66.5 mm
Thread size
M14 x 1.5
Wheel size
20 x 9.0
Offset (ET)
35 mm
Backspacing
5.88 in
Tire size
275/35R20
Use the calculator methodically
In Wheels from (donor), enter the wheel and tire you want to try.
In Installed on (your vehicle), select 2018 Audi RS 7 and keep the OEM set.
Adjust Custom wheel size: diameter, width, and offset.
Adjust Custom tire size: section width and aspect ratio. Changing rim diameter updates tire diameter in the comparison.
Brake clearance first. The RS 7 has large front calipers. Ensure spoke-to-caliper and barrel clearance on a bare-wheel test fit.
Hub-centric fit. The wheel center bore must be 66.5 mm. If larger, use quality 66.5 mm hub-centric rings.
Load rating. Wheel and tire load index must meet or exceed OEM.
Hardware. Match seat type to the wheel and keep proper thread engagement. Use M14x1.5 bolts of correct length for the wheel design.
Diameter. Aim to keep overall tire diameter near stock unless you accept speedometer changes.
Impact
Here is how your inputs affect the car. Use these to interpret the calculator outputs.
Offset change: More positive ET moves the wheel inward. Inner clearance decreases first. More negative ET moves outward, increasing poke and fender risk.
Width change: Half the width increase goes inward, half outward. Combine width and offset to judge real clearance.
Backspacing: Higher backspacing moves the barrel closer to suspension and brake lines.
Overall tire diameter: Larger diameter raises the car, softens gearing, and reads slower on the speedometer. A 1% increase makes the speedo read about 1% low.
Sidewall height: More sidewall rides softer, can feel less direct. Less sidewall sharpens response but reduces curb and pothole protection.
Unsprung mass: Heavier wheels slow damping and can lengthen stopping distance.
Risks
Caliper interference. The RS 7’s big brakes can hit spokes on some designs. Always test a bare wheel on the hub and spin it to check barrel contact.
Fender contact. Outer poke increases with lower ET or wider wheels. Check at full lock and full bump with the calculator’s poke change as your guide.
Hub vibration. Non-hub-centric fits can cause vibration. Use 66.5 mm rings when the wheel bore is larger.
Lug seat mismatch. Audi OEM bolts often use a specific seat profile. If the wheel uses a different seat, change the bolts to match. Do not mix seat types.
Hardware length. Too-short bolts reduce thread engagement. Too-long bolts can bottom out. Verify by hand before torqueing.
TPMS and alignment. After any change, reset TPMS if needed and check alignment if the handling feels off.
Next actions
Checklist
Confirm the OEM specs above against your door placard and manual.
Open the calculator on wheelinterchange.com and set your baseline.
Enter the donor wheel and tire. Tune width and ET until inner clearance and poke look safe.
Keep overall diameter change small. Review speedometer impact in the results.
Verify center bore is 66.5 mm or plan for hub-centric rings.
Source bolts that match seat type and M14x1.5 thread. Hand test for engagement.
Do a bare-wheel fit on the car. Spin for caliper and barrel clearance.
Mount tires, torque to the factory spec from the owner’s manual, and re-torque after 50–100 miles.
If any spec varies by trim or package, verify with the calculator and your Audi documentation. When in doubt, test fit first. That saves tires and time.
Methodology and sources
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
Bolt pattern / PCD
Center bore direction (donor wheel bore must not be smaller than the hub)
Wheel diameter, width, and offset against known OEM ranges
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
