The centre bore is the size of the hole in the centre of the wheel where the spigot fits through. The centre bore, (also known as spigot size), is the diameter of this hole, usually measured in millimetres.

How do I know my center bore size?

The centre bore is the size of the hole in the centre of the wheel where the spigot fits through. The centre bore, (also known as spigot size), is the diameter of this hole, usually measured in millimetres.

Does the center bore size matter?

The larger number indicates the diameter of the central bore of the wheel and, consequently, the smaller number represents the diameter of the hub’s mounting collar. Such rings will enable you to safely mount the wheel when its center bore is too big for the hub.

Can the center bore be smaller?

You’ll have to measure the lip on the hub to see what mm spacer is needed to clear it. Most stock studs can only take 5mm spacers at most while still giving enough thread for enough rotations. Bolt on spacers isn’t going to work since they’re typically designed to keep the same bore on both sides.

What is a center bore?

The centerbore of a wheel is the machined opening in the center of the wheel that centers the wheel properly on a vehicle. It is important for a wheel to be “Hub Centric” because it will reduce the chance of vibration.

Is center bore and offset the same?

When purchasing wheels it is important that the wheels specification matches with your vehicle. Determining if a wheel fits on a vehicle is based on offset, center bore and the bolt pattern. Offset of the wheel is the distance between the centerline and the surface of the wheel on which hubs are ascended.

What is center bore?

Can you change hub bore size?

Yes, a larger center bore and an adapter is fine. It’s very common when installing aftermarket wheels. They’re called “hubcentric rings”.

How do I know if my rims are center bore?

Here’s a picture of the inside of a wheel, the center bore is the hole in the center of the five bolt holes / lug nut holes which goes around it. Wheel center bore as seen from the inside of the rim. The center hole diameter is easy to measure, use a measuring tape or a caliper, which the latter is more preferred.

Can I use rims with different center bore?

Yes, a larger center bore and an adapter is fine. It’s very common when installing aftermarket wheels. They’re called “hubcentric rings”.