Hub Center bore on wheel larger... Problem?

[LavJordan]

Just wondering if a rim has a larger center bore than the suggested e36 stock 72.6, will it cause for any problems if all other specs match?

[pDubs]

Yes, absolutely. Big problem. You do NOT want the weight of the wheel relying only on the lug nuts.

All you need is hubcentric rings for whatever size the wheel's hub bore is to 72.56.

You can find these at most tire shops, ebay, or wherever.

[Mless5]

I highly recommend getting metal ones vs plastic. If you are looking at e39 rims to fit your e36, they have different offset too.

[LavJordan]

Now what if I had getting adapter plates and they did not have a hub that was protruding out, how do I go about that? Because hubcentric rings wont really do anything if theres already nothing to grab on to.

Like these:http://www.ebay.com/itm/4-BMW-5x120-to-5x4-5-Wheel-Adapters-/231410778934?pt=Motors_Car_Truck_Parts_Accessories&hash=item35e1284336&vxp=mtr

[visionaut]

get different hub-centric style adapters...

[pDubs]

^Yup. You want spacers/adapters that are hubcentric.

Not this
http://www.roadie.org/spacer.jpg


but this
http://www.allfordmustangs.com/forums/attachments/4-6l-tech/147234d1326840064-can-you-trust-hub-centric-wheel-adapters-spacers-007.jpg

[MatthewH]

Yes, absolutely. Big problem. You do NOT want the weight of the wheel relying only on the lug nuts.
Wheels are NOT held on by the hubs. All the hub bore does it make it easier to center the wheel while torquing down the bolts/nuts.

The factory BMW wheels are bored considerably larger than the hubs (as far as thinking that they are going to carry any load concentrically.)

[pDubs]

LOLL. BMW e36 wheels are hubcentric. e36 wheels that have 72.56 hub bores came with wheels to fit those. e39 wheels that have 74.1 hub bores came with wheels to fit that.

They are absolutely not lugcentric and should not ran like they are.

I've personally seen cars come into the shop I used to work at with aftermarket wheels running no hub rings complaining about vibration.

This is what their wheel looked like after we removed the lugs.

http://cdn2.hubspot.net/hub/45635/file-14137018-jpg/images/figure-5-b-large.jpg?t=1417806231960

Do some people do it? sure. Does that mean it's right? Probably not.

You want the center of the wheel supporting the weight of the car with hubcentric, not the lug nuts or wheel bolts.

[NLu]

The hub bore does not support the weight of the car, only the weight of the wheel and tire.

The purpose of hub rings is to fully center the wheel before you're able to torque the lugs.

The torque on the lug bolts/nuts generate tension in the bolt/stud, which generates clamping load between the wheel to the brake rotor to the hub. The friction between these three surfaces is what holds the weight of the car.

Plastic hub rings are fine, but they usually don't last past a couple of wheel swaps. Metal hub rings are durable, but tend to get frozen on the hub or the wheel.