Centre Bore
The centre bore is the hole in the middle of the wheel that fits over the hub spigot.
What is Centre Bore?
Hub-centric wheels are centred by the bore. Aftermarket wheels may need centring rings. Bore size is given in millimetres. Original wheels usually fit the hub exactly; aftermarket wheels often have a larger bore to fit many cars. Plastic or aluminium rings are used; aluminium handles heat better. Corrosion on the hub spigot can make tight-fitting wheels stick.
How it works
A tight fit on the hub centres the wheel before bolts are tightened.
Why it matters for your car
A loose fit without rings can cause vibration. Rings must match both hub and wheel.
Other terms
- Car Restoration
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- Grab Handle
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- Overtaking
- Residual Value
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- Turning Circle
- Winterising A Car