2019 Audi RS 5 Wheel Interchange
2019 Audi RS 5 Wheel Fitment Guide
You know the RS 5 is picky about wheels, but the details can feel murky. Let’s walk through the common myths, what the real constraints are, and how to sanity check a setup with the on-page calculator on wheelinterchange.com.
Quick recap - known OEM fitment for 2019 RS 5
| Spec | Value |
|---|---|
| Bolt pattern | 5x112 |
| Center bore | 66.5 mm |
| Thread size | M14 x 1.5 |
| Rim diameter | 20 in |
| Rim width | 9.0 in |
| Offset (ET) | ET26 |
| Backspacing | 5.52 in |
| Tire size | 265/35R19 |
Note the tire line shows R19, while the rim line shows 20 in. That is a mismatch. Trims and market packages can vary, and data sources sometimes mix them. Think of it as a flag to verify your exact OEM sizes from your door jamb label and owner’s manual, then plug that into the calculator for an accurate baseline.
Misconception 1: Any 5x112 Audi wheel will fit the 2019 RS 5
Why it seems true
Many Audis share 5x112, so it feels like a simple bolt-on situation.
What is true
Bolt pattern is only one constraint. The 2019 RS 5 also cares about a 66.5 mm center bore, the offset, the wheel width, brake caliper clearance, and load rating. You already have several OEM points above, and the calculator lets you compare inner clearance and outer poke against your baseline.
Implications
Get those factors wrong and you can see vibration, rubbing, or odd steering feel. Even if it physically bolts up, a poor offset-width combo can push the tire into liners or sit too far out.
Quick tests
- Enter your verified OEM setup in the calculator as “Installed on (your vehicle).”
- Set the donor wheel to the candidate size and compare inner clearance and outer poke.
- Match or exceed the 66.5 mm hub with hub-centric rings if the wheel bore is larger.
- Confirm the wheel sits over the RS 5 brakes with a careful test fit before mounting tires.
Misconception 2: Offset is flexible as long as the tire is the same
Why it seems true
Offset is a small number and wheels with the same tire size often look fine from outside.
What is true
Offset and width act together. Change width and you change where the inner lip and outer lip land. The mental model is simple - lower ET pushes the wheel outward, higher ET pulls it inward. The calculator will show inner clearance and outer poke shifts when you change width or ET.
Implications
Too much inward move risks rubbing struts or control arms. Too much outward move can contact fenders under compression. Small changes tend to be easier to live with. Larger changes ask for exact checking and possibly alignment tweaks.
Quick tests
- Use the “Custom wheel size” fields to try width and ET changes and watch both inner and outer movements.
- Look for enough inner clearance at full lock and over bumps during a slow test drive.
Misconception 3: Hub-centric rings are optional on Audi
Why it seems true
Aftermarket wheels often bolt up fine with larger bores and it can feel okay in the garage.
What is true
The RS 5 hub is 66.5 mm. If the wheel’s center bore is larger, use hub-centric rings so the wheel centers on the hub lip. The wheel fasteners use M14 x 1.5 threads, but threads are not a centering feature. A ring makes the assembly run true.
Implications
Skipping rings when the bore is larger can show up as highway vibration that balancing will not fully cure.
Quick tests
- Measure the wheel bore and confirm it is 66.5 mm or larger.
- If larger, add rings with 66.5 mm inner diameter and your wheel’s bore as the outer diameter.
- Recheck for vibration after a short highway run.
Handy tools: digital caliper and hub-centric rings 66.5.
Misconception 4: A 19 inch tire can seat on a 20 inch wheel
Why it seems true
R sizes and aspect ratios are confusing at a glance, and the numbers look close.
What is true
The tire rim diameter must match the wheel diameter. R19 tires are for 19 inch wheels. R20 tires are for 20 inch wheels. The calculator reflects this by updating tire diameter when you change rim diameter in the custom fields.
Implications
If your car shipped on 20 inch wheels but you see 265/35R19 in a spec table, treat it as a cue to verify your exact trim. Different markets and packages happen. Use your door sticker and manual as primary sources.
Quick tests
- Open the driver door and read the OEM tire size and pressures from the jamb label.
- Match that size in the calculator for your baseline. Then experiment with alternatives.
- Confirm load index meets or exceeds OEM on any replacement tire.
Using the wheelinterchange.com calculator for the 2019 RS 5
Here is a simple workflow that keeps things clear.
- Set “Installed on (your vehicle)” to your verified OEM wheel and tire sizes. Use the door label and manual to confirm the tire size if our table looks different.
- For “Wheels from (donor vehicle)”, either pick a known donor or key in the “Custom wheel size” with desired rim diameter, width, and offset.
- Adjust “Custom tire size” so the rim diameter matches the wheel and the overall diameter remains close to OEM for speedometer accuracy.
- Watch inner clearance and outer poke. Aim for changes that do not remove needed inner space and do not push the tire beyond the fender line.
- Record the before and after track width change and backspacing. The goal is a balanced change that fits your use case without rubbing.
Hardware details and sanity checks
Fastener threads are M14 x 1.5. Seat type can vary by wheel, so verify before buying hardware. If you are installing aftermarket wheels, a wheel hanger makes mounting simpler on cars that use bolts.
- Clean the hub face and wheel mounting pad for proper seating.
- Confirm full thread engagement of the fasteners. Avoid anything that bottoms out or feels short.
- Torque to the specification in your owner’s manual, then recheck after a short drive.
Helpful tools: 1/2 inch torque wrench and wheel hanger M14 x 1.5.
Troubleshooting fitment on the RS 5
Here are quick ways to move from confusion to clarity.
- If you feel vibration after a wheel change, check hub-centric rings and balance first.
Wheel interchange calculator
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