Hub bore and hub-centric rings explained
Hub bore is the measurement people forget, and it is the one that decides whether a wheel centres properly on your car. Here is how to read it and when a ring fixes the gap.
Written by WheelStop's fitment team, cross-checked against Indian vehicle specs. Last updated .
What is hub bore?
The hub bore, also called centre bore, is the hole in the middle of a wheel. It slides over the round lip on your car's hub. A wheel that fits snugly on that lip is hub-centric: the hub carries the weight and the nuts only clamp the wheel on.
Can a wheel have a bigger hub bore than my car?
Yes. A wheel centre bore can be larger than your hub, and many aftermarket wheels are made that way so one design fits several cars. A bore smaller than your hub will not fit at all. The gap between the two sizes is what a hub-centric ring fills.
What does a hub-centric ring do?
A ring is a thin spacer that sits between the hub and the wheel bore. It centres the wheel on the hub so the load is carried correctly, which prevents vibration at speed. Without it, the wheel centres only on the lug nuts, which is called lug-centric and can cause shake you feel in the steering wheel.
How do I find my car's hub bore?
Look up your model in our PCD checker, which lists the hub bore for each generation. Then compare it to the centre bore printed in the wheel listing. The wheel bore should equal your hub bore, or be larger and paired with the right ring.
Do hub-centric rings replace checking PCD and offset?
No. A ring only solves the centre bore. You still need the bolt pattern and offset to match. Use the fitment checklist to run through all of them in order.