Recorded OEM specifications for the 2018 Audi RS 5, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Baseline mounting dimensions used for interchange decisions.
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.
These are vehicle-year records whose recorded OEM ranges overlap this 2018 Audi RS 5. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 93 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change 11.35 mm, inner change 1.35 mm. This uses aggregated width/offset ranges, not a specific wheel.
Wheel width/offset data is incomplete.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Approximate position vs the mid OEM package: outer change -6.35 mm, inner change -6.35 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change -7.35 mm, inner change -5.35 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Dataset suggestionWheel spacer ≈ 16.35 mm – not a verified installation requirement.
A spacer of about 16.35 mm is a dataset suggestion only; clearance is not verified. Estimated outer position is about 16.35 mm farther inward than the mid OEM package.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Dataset suggestionWheel spacer ≈ 9.35 mm – not a verified installation requirement.
A spacer of about 9.35 mm is a dataset suggestion only; clearance is not verified. Estimated outer position is about 9.35 mm farther inward than the mid OEM package.
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 5. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2018 Audi RS 5
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
M14 x 1.5
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
I’ll walk you through this the same way I do it in the shop. Think of it as building a clear mental model of what fits, then refining it with the on-page calculator until you can order parts with confidence.
Here is the verified fitment data we have on file for the 2018 Audi RS 5. I use these values as the baseline inside the calculator before I try any changes.
| Bolt pattern | 5x112 |
| Center bore | 66.5 mm |
| Thread size | M14 x 1.5 |
| Wheel diameter | 20 in |
| Wheel width | 9.0 in |
| Offset | ET 26 mm |
| Backspacing | 5.52 in |
| Tire size shown | 265/35 R19 |
You probably noticed the oddity. The wheel diameter listed is 20 inches, while the tire line shows a 19 inch fitment. That usually means the vehicle was offered with different wheel and tire packages. I see this on performance Audis quite often. Treat the wheel specs and the tire size as package dependent rather than a single fixed combo.
Rule of thumb: match your baseline to what is physically on your car first. Then use the calculator to explore changes. The tire label on the driver’s door jamb and your owner’s manual are the quickest OEM sources to confirm your starting tire size and load rating.
Let’s anchor one solid baseline inside the calculator. Here is the simple setup that gets you moving fast:
As you change rim diameter in the calculator, the tire diameter comparison updates so you can see how speedometer error and fender clearance trend. That immediate visual is the small win. It grounds the conversation in actual numbers rather than guesswork.
Tools that help at this stage:
With a baseline set, I branch out carefully. Think of offset, width, and diameter as a triangle. Push one corner and the others react. Here is how I approach each change:
Going wider pushes the inner barrel toward the suspension and the outer lip toward the fender. The calculator’s inner clearance and poke numbers make this easy to visualize. A small width bump, paired with a modest offset tweak, can keep clearances similar to stock.
Lower ET pushes the wheel outward. Higher ET pulls it inward. My rule of thumb is to watch inner clearance first on cars with big brakes and tight upright geometry, like the RS 5. Then check outer poke against fender lips under compression.
Plus-sizing to a larger wheel typically means a lower-profile tire to keep overall diameter similar. Use the calculator to keep tire diameter within a small percent of your baseline so speedometer impact and gearing change stay reasonable. The calculator’s tire diameter and speed difference readouts make this quick.
The RS 5 hub is 66.5 mm, and the bolt pattern is 5x112 with M14 x 1.5 threads. Aftermarket wheels often have a larger center bore. In that case, hub-centric rings that step down to 66.5 mm help maintain a smooth, vibration-free ride. Match lug or bolt seat style to the wheel and verify hardware length if spacers are involved. If in doubt, confirm seat type and torque with OEM documentation or the wheel manufacturer.
Helpful setup tools:
This is where I get precise and reduce surprises.
If a value is unclear or varies by trim, leave it blank until you verify it against the door label or OEM documentation, then plug it into the calculator to see the downstream effects.
I treat the calculator as the planning tool, then I confirm with a real-world test fit before committing tires.
When numbers and test fit agree, you are set. If they disagree, adjust the offset or width in the calculator a small amount and retest. Small moves tend to solve most issues cleanly.
Quick recap. The 2018 Audi RS 5 takes a 5x112 bolt pattern, 66.5 mm hub bore, and M14 x 1.5 hardware. Our dataset lists a 20 x 9.0 ET 26 wheel with 5.52 inches of backspacing, alongside a 265/35R19 tire size that likely reflects a different factory package. Use your door label to confirm your starting size, set that baseline in the calculator, then explore width, offset, and diameter changes while watching inner clearance, outer poke, and tire diameter.
The mental model is simple. Start from what is on the car, make one change at a time in the calculator, and validate with a careful test fit. That progression keeps performance high and surprises low, and it gives you the confidence to pick wheels and tires that look right and work right.
If you need a couple of helpful tools to support the process, here are the quick links again:
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
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.
