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slappy

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Discussion starter · #1 ·
A friend gave me these 2 wheels. The Gorilla Hub Centric Rings that came with them wont fit over my s13 hubs.

Image


When it comes to measuring i'm pretty much screwed , so does anyone know what size Rings i need to order that will fit my hubs?

http://www.gorilla-auto.com/products/?sfID...0&sfID2=278

Are those plastic rings any good or should i buy some aluminum ones?

There is way to much play/gap without the rings.

Thanks.
 
Hubcentric rings are a very debated topic. basically no weight is carried on the hub, even with the correct bore diameter. Think about it, the tollerance would have to be so high that the machining of each (the hub, the wheel bore, and the lug holes) would have to be PERFECT. Point is, the weight is carried out on the wheel bearings...NOT the lug studs because tapered lug nuts center the wheel over a given stud, making it not carry the car weight, but transfering it to the wheel bearings.

This is why most hubcentric rings are PLASTIC or some sort of composite.
Its insignificant to use hubcentric rings, in all honesty.

Edit* This is the reason for tapered lug nuts. Some older cars had flat lugs as do some drag cars, and these require exact bor diameters because the wheel isnt going to become centered and the shear load on the lugs is increased greatly. So if you have non-tapered lugs, worry about bore diameter.
 
Going to have to (respectfully) disagree with the asshat who rocks a wagon now :D

Hubcentric rings are quite important to rotors. No rings = warped rotors due to excess vibrations between the rotor and the wheel. It will happen no matter how tight your lugnuts are.
Good hubcentric rings are aluminum.
Plastic ones will melt over time if your rotors get too hot. I've seen it plenty of times.
 
Discussion starter · #5 ·
I just read that....

Hubcentric Rings
Hubcentric ring set (4) Helps to eliminate vibration by centering the wheel on the hub.
Good hubcentric rings are aluminum.
Plastic ones will melt over time if your rotors get too hot. I've seen it plenty of times.
I needed that info , THANKS!

What about POLY-CARBONATE , is that just a fancy word for plastic?

http://cgi.ebay.com/ebaymotors/NISS...TRIC-RING-HUB-RINGS_W0QQitemZ180154674683QQihZ008QQcategoryZ33749QQcmdZViewItem
 
Hub centric rings are always a good idea. I have aluminum ones on both of my cars. They are even more important if you are running 4 lug where you don't have that extra bolt to center the rim on the hub. Safety REALLY comes into play if one or more of your lugnuts come loose while driving.

iirc the bore diameter of nissan fr hubs is 67mm.
 
Going to have to (respectfully) disagree with the asshat who rocks a wagon now :D

Hubcentric rings are quite important to rotors. No rings = warped rotors due to excess vibrations between the rotor and the wheel. It will happen no matter how tight your lugnuts are.
Good hubcentric rings are aluminum.
Plastic ones will melt over time if your rotors get too hot. I've seen it plenty of times.
Going to disagree with you also!
Your wheel isnt going to literally sit on the hubcentric rings...its just not. The tapered lugs are going to pull it into whatever direction it wants. And as I said before the tolerances that owuldhave to be set into place for the rings and wheels and wheels themselves and the hub on the car would have to be so freaking tight that it would cost way the hell to much and be literally impossible....

Warped rotors are a myth:
http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml
 
With all that being said, I have NEVER heard of anyone running aftermarket wheels that are not hubcentric or using hubcentric rings to ever have a problem. EVER. No premature wear, lug failure, stress, wheel fatigue, vibrations, "warped" rotors, wheel bearing failure etc. I have simply never seen it happen....
 
That doesn't mean that it will never happen. If you have 4 lug wheels and 2 of the lugs come loose because some stupid idiot working at a hole in the wall tire shop forgot to tighten them (or even worse, over torqued them using an impact gun and they break off) I would want to have hub centric rings because the wheel will at least have the ring to keep it centered in that situation.
 
In that case, you will have massive vibration due to the wheel falling off! Its the owners responsibility to make sure his car is in check...no matter who works on the car. So I say that ignorance is not a mechanical reason to have hubcentric rings...they give no mechanical advantage to your setup.

This is only my opinion, but I am right. Buy hub rings and see for yourself but I know deep down that they do next to nothing.
 
You can what-if this topic to death. Nissan designed the stock wheels to be hub-centric, not lug-centric. Therefore, it's probably the safest bet to use adapter rings. The 240sx center bore is 66.2 mm. What is the center bore for the wheel?
 
That is a rough messurement...like I said the tollerances are going to have to be very exact. You need to run to the hardware store or somewhere that sells calipers (prefered electronic) than can measure in MM. You can pick on up for around $20-30 usually and they come in handy all the time (trying to figure out what size an axle bolt is...like the 32mm found on the rear of nissan etc without buying 30-35mm sockets and returning the others)
 
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