Wheel Center Bore Tool
Center Bore Calculator: Check Hub Bore and Wheel Center Bore Fitment
Use this center bore calculator to compare vehicle hub bore and wheel center bore before ordering custom wheels. It helps buyers check hub-centric fitment, ring requirements and quotation specifications.
Check Center Bore Fitment
Enter the vehicle hub bore and the wheel center bore in millimeters. The calculator will show whether the wheel bore matches, is larger, or is too small for the vehicle hub.
This tool is for specification planning. Final fitment should also confirm PCD, offset, wheel size, brake clearance, load rating and vehicle application.
How to Read the Result
Same size:
The wheel bore matches the vehicle hub bore. This is suitable for hub-centric fitment.
Wheel bore larger:
The wheel may fit physically, but a hub-centric ring may be required to reduce vibration risk.
Wheel bore smaller:
The wheel will not fit the hub unless the bore specification is changed or machined correctly.
Fitment Reference
Center Bore and Hub Bore Guide
Center bore is one of the most important dimensions for custom wheel fitment. It should be confirmed together with PCD, offset and brake clearance.
| Condition | Meaning | Buyer action |
|---|---|---|
| Wheel bore equals hub bore | Wheel center bore matches the vehicle hub | Good for hub-centric fitment if other specs match |
| Wheel bore larger than hub bore | Wheel can often mount, but may not center on the hub by itself | Confirm whether hub-centric rings are required |
| Wheel bore smaller than hub bore | Wheel cannot seat correctly on the vehicle hub | Change the center bore specification before ordering |
| Aftermarket universal bore | Some wheels use a larger bore for multiple vehicle applications | Confirm ring size, material and fitment tolerance |
| Custom forged wheel bore | Center bore can often be specified for the target vehicle | Send exact vehicle hub bore and application data |
Buyer Checklist
Center Bore Should Be Quoted With Full Fitment Data
For custom wheel projects, center bore is only one part of the specification. Send the full wheel data so the supplier can review fitment and production feasibility.
FAQ
Center Bore Calculator Questions
Short answers for buyers checking hub bore and wheel center bore before placing a custom wheel order.
What is wheel center bore?
Wheel center bore is the hole in the center of the wheel that fits over the vehicle hub.
Is hub bore the same as center bore?
Hub bore usually refers to the vehicle hub diameter. Center bore usually refers to the wheel center hole diameter.
Can a larger center bore fit a smaller hub?
It may fit physically, but a hub-centric ring may be required to center the wheel properly on the vehicle hub.
Can I order custom wheels with exact center bore?
Yes. Custom wheel projects can often specify center bore, PCD, offset, finish and logo requirements, subject to manufacturing feasibility.
Custom Wheel RFQ
Need Custom Wheels With Exact Center Bore?
Send your vehicle hub bore, wheel size, PCD, offset, finish and quantity to CustomWheelHub. Clear fitment data helps speed up quotation and factory review.
Copyable RFQ Template
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Send your vehicle, size, PCD, ET, center bore, finish, quantity and destination through our quote request form.
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Send your vehicle platform, wheel size, PCD, offset, finish and quantity. We confirm fitment and reply within 24 hours.