Opel with wheels from Fiat - hub centric rings

Hub centric rings for Opel hub (CB 56,6 mm / 56.6 mm, PCD 4x100) with Fiat wheels (CB 58,1 mm / 58.1 mm, PCD 4x98)

Opel vehicles are equipped with a wheel hub diameter of 56,6 mm and a bolt pattern (PCD) of 4x100. When installing Fiat alloy wheels with a center bore of 58,1 mm and a bolt pattern (PCD) of 4x98, proper fitment requires specific components.

You will need two products:

1. Wheel hub centric rings – used to adapt the hub diameter to the wheel center bore. They eliminate the size difference between 56,6 mm and 58,1 mm, ensuring accurate alignment and stable mounting.

2. Wobble bolts or wobble nuts – designed to compensate for the difference between the PCD 4x100 of Opel and the PCD 4x98 of Fiat wheels.

These hub centric rings are suitable for Opel hubs with a diameter of 56,6 mm and Fiat wheels with a center bore of 58,1 mm.

Wobble bolts or wobble nuts allow safe installation between PCD 4x100 and PCD 4x98.

Wobble bolts in stock – available HERE

Wobble nuts in stock – available HERE

Not sure which parts you need? Contact us — our team is ready to assist you quickly.
Please note:
- Certain Opel or Fiat models may require different specifications depending on production year.
- Always verify hub size and bolt pattern before installation — contact us if you are unsure.