Wheels from Hyundai i20 I on Hyundai i10 III: compatible?

Yes, the hub is identical

Same 4x100 PCD and same 54.1 mm centre bore: wheels from Hyundai i20 I bolt on and centre on Hyundai i10 III without rings. You still need to check the offset and tyres, detailed below.

Hyundai i20 I2008–2015Hyundai i10 IIIfrom 2019
PCD4x1004x100
Centre bore54.1 mm54.1 mm
ThreadEcrous - 12x1.50M12x1.5
Original wheels ≈5.5Jx14 ET46
≈6Jx15 ET47
5.5Jx14 ET42
6Jx15 ET48
6.5Jx16 ET48

≈: width estimated from the original tyre size.

Wheel by wheel: offset and tyres

Each original wheel from Hyundai i20 I is compared with the one from Hyundai i10 III 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.

  • ≈5.5Jx14 ET46 · 175/70R14 — Check on the car

    Compared with the original 5.5Jx14 ET42 on Hyundai i10 III: shock absorber side +4 mm, wheel arch side −4 mm, tyre diameter +3 % : fit it with the original tyre size of Hyundai i10 III (175/65R14), not that of Hyundai i20 I. Comparison for guidance only (estimated width). Check in detail

  • ≈6Jx15 ET47 · 185/65R15 — Fits like the original

    Compared with the original 6Jx15 ET48 on Hyundai i10 III: shock absorber side −1 mm, wheel arch side +1 mm, tyre diameter +6.3 % : fit it with the original tyre size of Hyundai i10 III (185/55R15), not that of Hyundai i20 I. 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 Hyundai i10 III (M12x1.5), 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 Hyundai i10 III on Hyundai i20 I?