Wheels from Audi RS Q3 on Audi R8 axe arrière: compatible?

Yes, the hub is identical

Same 5x112 PCD and same 57.1 mm centre bore: wheels from Audi RS Q3 bolt on and centre on Audi R8 axe arrière without rings. You still need to check the offset and tyres, detailed below.

Audi RS Q3from 2019Audi R8 axe arrière2007–2015
PCD5x1125x112
Centre bore57.1 mm57.1 mm
ThreadM14x1.50M14x1.50
Original wheels ≈7Jx19 ET38 10.5Jx18 ET50
11Jx19 ET50

≈: width estimated from the original tyre size.

Wheel by wheel: offset and tyres

Each original wheel from Audi RS Q3 is compared with the one from Audi R8 axe arrière of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.

  • ≈7Jx19 ET38 · 225/50R19 — Fits like the original

    Compared with the original 11Jx19 ET50 on Audi R8 axe arrière: shock absorber side −62.8 mm, wheel arch side −38.8 mm, tyre diameter +2.7 % : fit it with the original tyre size of Audi R8 axe arrière (295/35R19), not that of Audi RS Q3. Comparison for guidance only (estimated width). Check in detail

Before fitting the wheels

An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Audi R8 axe arrière (M14x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.

And the other way round: wheels from Audi R8 axe arrière on Audi RS Q3?