Yes, the hub is identical
Same 5x108 PCD and same 65.1 mm centre bore: wheels from DS DS 9 bolt on and centre on Peugeot RCZ-R without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from DS DS 9 is compared with the one from Peugeot RCZ-R 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.
- ✓
7.5Jx19 ET46 · 235/45R19 — Fits like the original
Compared with the original 9Jx19 ET24 on Peugeot RCZ-R: shock absorber side +2.9 mm, wheel arch side −41.1 mm, tyre diameter +3.5 % : fit it with the original tyre size of Peugeot RCZ-R (235/40R19), not that of DS DS 9.
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 Peugeot RCZ-R (M12x1.25), 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 Peugeot RCZ-R on DS DS 9?