If you’ve ever fitted aftermarket wheels and noticed vibration at certain speeds, the problem might not be your tyres or balance — it could be missing spigot rings. These small but essential components ensure your wheels sit perfectly centred on the hub, preventing wobble and vibration. Here’s what they do and when you need them.
What Are Spigot Rings?
A spigot ring (also called a hub centring ring) is a small ring that fits snugly between your car’s hub lip and the centre bore of your alloy wheel.
Factory wheels are designed to be a hub centric fit, meaning the wheel’s centre bore exactly matches the hub’s diameter. But most aftermarket alloys are made with a larger universal bore so they can fit multiple cars — that’s where spigot rings come in.
They take up the gap between the hub and wheel, keeping everything perfectly centred.
Why They’re Important
Without spigot rings, the wheel relies entirely on the bolts to centre itself. Even if it feels tight, it’s likely sitting slightly off-centre — and that’s all it takes to cause vibration through the steering wheel at speed.
Spigot rings ensure your wheel is hub located, not bolt located, maintaining perfect balance and alignment just like a factory setup.
Materials: Plastic vs Aluminium
Spigot rings come in two common materials:
-
High-quality nylon or polycarbonate: These are heat-resistant, durable, and ideal for street use.
-
CNC-machined aluminium: Stronger and longer-lasting, often used for performance or show builds.
Both work well as long as they’re precision-machined to the correct sizes. Avoid cheap, poorly moulded rings that don’t sit flush — they can cause more harm than good.
Spigot Rings with Spacers
If you’re using hub centric wheel spacers, you usually don’t need separate spigot rings — the spacer itself acts as the centring element.
All Killer Offset, Demon, and Bimecc spacers supplied by Stanced UK are fully hub centric, meaning they include both a vehicle-side and wheel-side hub lip to locate everything perfectly without extra rings.
How to Check If You Need Them
You need spigot rings if:
-
Your wheels have a larger centre bore than your car’s hub.
-
You experience steering wheel vibration after fitting aftermarket wheels.
-
Your spacers or wheels don’t feel snug on the hub before tightening the bolts.
If your spacers are hub centric, you’re already covered.
The Bottom Line
Spigot rings might be small, but they play a big role in wheel stability and ride quality. Always make sure your wheels (or spacers) are properly centred — and when in doubt, use hub centric spacers from Killer Offset, Demon, or Bimecc for the most secure and precise fit possible.
✅ Discover hub centric spacer kits from Killer Offset, Demon, and Bimecc at Stanced UK – engineered for perfect fitment, no spigot rings required.
