2018–2025 · estate
The B9 RS4 Avant sits on flared arches over the A4 body, so it takes wider wheels than an A4 or S4 without bodywork. Most owners move from the factory 9-inch rims to a square 10 or 10.5-inch set at around ET20 to ET25, usually in 20 inches, to fill those arches.
5x112 bolt pattern · 66.5 mm centre bore · Stock wheels: 19 × 9, 20 × 9, 19 × 8 inch · Stock tyres: 265/35 R19, 275/30 R20, 235/40 R19
Updated 2026-10-04 · High source confidence. Check your exact trim and market. How we check specs
| Specification | Value |
|---|---|
| Bolt pattern | |
| Stock tyre sizes | |
| Centre bore | 66.5 mm |
| Fastener and thread | Wheel bolt, M14x1.5 |
| Tightening torque | 120 Nm (confirm in your handbook) |
Factory options vary by trim and market. Match your car to the row below and check its tyre placard before using it as a baseline.
| Trim | Axle | Wheel | Tyre |
|---|---|---|---|
| RS4 Avant, 19-inch standard wheels | Front and rear | 19 × 9 inch, ET24 | 265/35 R19 |
| RS4 Avant, 20-inch optional wheels | Front and rear | 20 × 9 inch, ET26 | 275/30 R20 |
| RS4 Avant, 19-inch winter fitment | Front and rear | 19 × 8 inch, ET26 | 235/40 R19 |
Read these before choosing wheels for the RS4 Avant: they explain the offset, fitment and hub numbers in this guide.
Starting points for a build. Read the notes with each setup, especially if your car is lowered or has different brakes.
RS4 owners on RS246 single out 20x10 ET20 or 20x10.5 ET25 as the sweet spot for the B9 RS arches. 285/30 R20 is the natural tyre for a 10-inch rim. Going to 295/30 R20 on a 10.5-inch rim is less straightforward: one B9 owner needed a 9 mm front spacer to clear the steering knuckle and a flat-head screw at the top of the arch to stop contact.
Apex lists 19x10 ET20 with 275/35 R19 as its main B9 RS5 fitment, sitting flush without rubbing. RS4 owners report the B9 RS4 and RS5 share wheel offsets, but check the specific design against your brake package.
One RS246 owner runs 15 mm spacers on all four corners of a B9 RS4 with no rubbing, giving roughly ET11. The front sits slightly tighter than the rear. Longer ball-seat bolts are needed with spacers this thick.
ET20 to ET26
At 10 to 10.5-inch widths, ET20 to ET25 is the documented window for B9 RS4 and RS5. A 10.5-inch wheel at ET35 is reported to contact suspension parts.
10.5 inch
Square 10.5-inch wheels around ET25 with 285 or 295 tyres are run on standard B9 RS arches. Wider than this is not commonly documented without arch work.
These figures belong to the setups described here. Combining the widest wheel with either end of the offset range does not guarantee a safe fit. For how ET moves the wheel in and out, read wheel offset explained; for how far the tyre can sit out, see flush, poke and tucked fitment.
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These tools start with the RS4 Avant, 19-inch standard wheels front size. Choose your own trim or axle in the calculator if it differs.
5x112 with a 66.5 mm centre bore. It uses M14x1.5 ball-seat wheel bolts tightened to 120 Nm.
19x9 ET24 with 265/35 R19 tyres as standard, or optional 20x9 ET26 with 275/30 R20 tyres.
Around ET20 for a 10-inch wheel or ET25 for a 10.5-inch wheel. Those fill the arches without rubbing at standard height.
Generally yes. Both cars share the 5x112 hub, the same factory wheel sizes and, according to owners, the same aftermarket offsets.
Not reliably. The RS4 brakes are larger than the S4's, so an S4 wheel may not clear the calipers. Check every design before buying.
Factory tyre (tire) sizes for the 2018–2025 Audi RS4 Avant B9 are 265/35 R19, 275/30 R20 and 235/40 R19, depending on trim. Your tyre placard shows the size for your car.
66.5 mm. Aftermarket wheels with a larger bore need hub-centric rings sized to it.
120 Nm (about 89 lb-ft) for the original bolts. Confirm in your handbook, especially with aftermarket wheels or bolts.
This guide is a starting point, not a fitment guarantee. Specs can differ by market, trim and previous modifications. Confirm all sizes, clearances and fastener requirements with a qualified wheel and tyre professional before buying or fitting parts.
More guides from Audi or cars with the same bolt pattern. A matching pattern alone does not make a wheel interchangeable.