RULLINE 1-inch Steering Wheel Hub Adapter – 6 Hole to 3 Hole Spacer, Black

Upgrade your steering wheel setup with the RULLINE 1-inch Steering Wheel Hub Adapter Conversion Spacer. This precision-made billet aluminum adapter lets you run a 6-hole wheel on a 3-hole hub, expanding wheel compatibility without sacrificing strength or clarity of line on your dash. The black anodized finish adds an understated, premium look that resists wear while keeping a low profile on your steering column.

What you get

• 1-inch black anodized billet aluminum spacer designed for 6-hole to 3-hole hubs (70mm and 74mm bolt circles).
• Includes hex bolts and 10-32x1/2in flat-head screws for secure mounting.
• Compact, rigid construction with precise CNC machining for a snug, balanced fit.
• Designed to fit 6-hole wheels measured 2.75 inches (70mm BC) or 1.375 inches (35mm) from center to each hole.
• Note: suitable for Nardi 6-hole wheels with 74mm BC; compatible with VW Manx styled buggy setups and similar applications.

Real world use cases

Imagine upgrading a classic Grant, Momo, Forever Sharp, or other 6-hole wheel to a 3-hole hub without changing the steering column. The adapter offers a clean, continuous line from wheel to steering rack, preserving feel while opening up wheel choices for retro builds, off-road buggies, and custom street machines.

• Easy upgrade path for older wheels on newer hubs, preserving steering response and aesthetics.
• Ideal for snap-off steering wheel configurations common in race inspired or off-road projects.
• Helps you tailor the wheel position and driving posture when space or layout is limited.

Construction and finish are designed for steady performance. The 1-inch spacer uses billet aluminum with a black finish that resists scuffs and maintains a clean look under daily use. The included hardware is sized for common 6-hole and 3-hole patterns, so you can install with standard tools and feel confident in alignment and balance. As a reminder, this product does not alter steering geometry; it simply provides a mechanical bridge between wheel and hub with precise tolerances to keep things aligned.

Compatibility notes

The spacer supports wheels with 6 mounting holes and 70mm BC or 74mm BC, including Nardi 6-hole wheels with 74mm BC in some cases. Always verify center-to-center spacing and hub pattern before purchase to ensure a proper fit.