King700se

Wheel center bore is 73.1

...factory SC400 center bore is 60.1

Who has made something like this work before??

CatManD3W

iTrader: (18)

Most aftermarket wheels are 73.1 bore.....you need to get a hub ring adapter for 60.1 to 73.1...you get plastic or aluminum

This is pretty common knowlege BTW

King700se

anyone have a preference on plastic or aluminum?

OG Dada

iTrader: (10)

I've used both. No difference in performance. I have aluminum on mine right now.

PseudoK

can someone explain center bore to me? you guys aren't referring to spacers right?

adc27

How wide the middle of the wheel is where you place it on the hub.

Matt300ZXT

iTrader: (2)

That'll keep the wheels hub centric instead of lug centric.

GISguy

Plastic on mine. Works great.

scENFORCER

Aluminum on mine, supposed to be better somehow, but I've never tried plastic so I cant say..

oldManTan

i don't have anything on mine, is that bad?

CatManD3W

iTrader: (18)

By running it without a hub ring you are putting the weight of wheel (and car) on the studs instead of the center of the hub...it also enables the wheel to be perfectly centered

Pick up some plastic hub rings they are only a few bucks...

scENFORCER

^ that makes sense. But having said that, wouldnt you want the weight of your car on something a little more sturdy than plastic?

GISguy

The plastic takes the weight just fine. The only time the aluminium would be better is for impact, and assuming your wheels are tightened onto your studs, there's no reason it would sustain an impact for any reason. Just steady weight.

mikef

iTrader: (3)

it does help with balancing at high speeds i think

Slaker13

If you mount the wheels properly using the star pattern, it should mount into the center. But people still complain about vibrations since the wheels aren't exactly centered. Hub centric rings are adapters that will allow you to put the wheels exactly in the center and have them fit snugly onto the hub lip.
The hubcentric rings are helpful if you use:
1: wheel bolts (VW, BMW etc)
2: have small face area lug nuts (tuner lugs or non shouldered lugs)
3: a wheel that was single weight balanced
Beyond those minor issues I have never used them. They aren't necessary but its a good choice.