Hub Centric Ring 77.8/63.3 mm – Wheel Hub Ring

The hub centric ring 77,8/63,3 mm precisely centres aftermarket wheels with a 77,8 mm centre bore onto vehicle hubs with a 63,3 mm hub bore. It closes the 7.25 mm gap on each side and eliminates vibrations, steering wheel shimmy and wheel imbalance.

Vehicles with 63,3 mm hub bore

This hub centric ring is compatible with vehicles featuring a hub bore diameter of 63,3 mm, including:

• Opel Corsa A/B/C (S93/S2000/C)
• VW Transporter T4 (70XA)
• Fiat Bravo/Brava (182)
• Alfa Romeo 145/146 (930)

Wheels with 77,8 mm centre bore

The ring fits all wheels with a centre bore of exactly 77,8 mm. Typical wheel brands in this size: gängige Nachrüstfelgen von BBS, OZ Racing, Borbet, ATS, Ronal, Dezent, Alutec, Dotz u.v.m..

Technical specifications

• Outer diameter (OD): 77,8 mm
• Inner diameter (ID): 63,3 mm
• Gap: 7.25 mm (per side)
• Material: Polyamide PA66 – heat and pressure resistant
• Includes: 1 piece or set of 4 (for 1 vehicle)

Why is a hub centric ring necessary?

Aftermarket wheels typically have a larger centre bore than the vehicle hub. Without a hub centric ring, the wheel is not seated precisely – resulting in vibrations, steering shimmy and premature tyre wear. The hub centric ring fills this gap to the millimetre.

All hub centric rings from SchweizerFelgengutachten.ch comply with Swiss road traffic regulations and can be used in all 26 cantons.