Is this a wheel spacer?

Question

I just swapped my aftermarket winter alloy wheels&tires, for original summer wheels & tires. The steering wheel feels wobbly after I did that. I read this thread here on mechanic exchange Wobbly Steering-wheel after changing Rims/Tires? , which is exactly what I am experiencing. However, before taking off the wheel again, I wanted to check if this appears to be a spacer.

Past fall, when I put on these after-market wheels & tires, a shop put them on, so I'm not sure if they had put on spacers.

I took 2 photos. One is slightly farther out, so you see the wheel a bit, with rusty break pad in the background. The second one is a close up which shows the little 'crack' which I assume could be the spacer.

Thanks in advance

Sasha

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You are right and Paul; that was not a spacer. I took the wheel off and this is what it looks like.

It seems to have a rubber or plastic adapter on that I cannot identify. Looking on the web, this is how the hub-centricadapter should look when not installed.

Source

Maybe I squished it with the regular rim?

Whatever the black ring is on the rotor, it is not coming off easily. What do you think that is and could it be preventing regular rim to come up close to the rotor, therefore creating the wobbly steering wheel?

Can anyone tell me if the black rubber / plastic part on the rotor the hubcentric adapter?

Answer 1

It's hard to tell from your pictures, but I don't believe there is a spacer there. In the second picture, what you are showing appears to be the "hat" of the disk brake. Also, from the sound of it, the other link you posted is talking about a centering ring. That ring would not be visible while the wheel is attached. I believe the only way you are going to be able to tell if there are hub spacers is to take a wheel back off, but this surely could be your issue.

Answer 2

The black plastic part you see surrounding the dust cap in the centre is simply a spigot ring that is used to finely adjust the centre bore of the alloy wheel. If you measure the diameter of the lip that the spigot ring is sat on and the diameter of the centre hole in your wheel there will likely be a small difference that is taken up by the ring.

If your new wheels require spigot rings, I'm assuming that the gap yous see is caused by either this ring being too thick for the wheel, or that there are now two rings (old and new), one attached to the hub and one to the wheel. The old one will pop off with a wide screwdriver.

Either way, the shop that fitted the wheels should not have left your car like that!

As a side note, in my experience (in the UK, your definition may be different), hubcentric adapters are used to change the pitch circle diameter (bolt spacing) and/or the offset (distance between edge of rim and face that attaches to the car). They are metal and considerably more heavyweight than what you have there.

Answer 3

That ring is a spigot ring used when the center bore of your wheel is greater than the size of the hub wheel mounting, spacers are usually metal and either have holes with bolts that screw into the hub or holes that line up with your stud pattern to go through the wheels, then through the spacers and then into the hub.

as for the "wobbly steering wheel" that could be any number of things such as -

• bolts/nuts not tightened up enough
• wheel wasn't sat on the hub properly
• deteriorated wheel bearings, bottom arm, drop link, trackrod end
• wheel(s) not balanced properly
• out of shape tyre(s)
• buckled wheel(s)

You can tell if you need a spigot ring on by taking it off the hub, putting your wheel onto the hub (without any nuts/bolts in) and then try shaking the wheel side to side and up and down, if there is movement/ a gap between your wheels center bore and the hubs mount then you need the spigot ring, if not then you dont.

Answer 4

The part I have circled is exactly that:

You should be able to pop that off of your hub and standard or OEM wheels should fit on without issue. You should be able to slide a blade in behind it to pull it away from the hub ... if not, you may need to forcibly take it off and get replacements. If they are made out of plastic or nylon, they should be pretty cheap and easy to get from your aftermarket wheel distributor, but check with them before you make any plans.