To those with any aftermarket wheels, I got a set of Rotas with a hub bore of 73, and I know the ITRs bore is 64. I've heard from people that the rings aren't necessary if the lugs are seated and secured properly. Just kind of curious what people here have done and what you would suggest.

Thanks in advacnce

Erick

 

i needed them too . but didnt use them , they are not nessacary
just put them on right and your cool .

 

*Most* people here will tell you to use them.
I agree with them. They are important for optimal alignment of the wheel/hub.

 

The function of the lugs is not to bear the weight of the car - that is the function of the hub and that is why it is ideally necessary to use hubcentric rims and/or rings. The function of the lugs is to fasten the wheel to the hub. There are a lot of places you can get hubcentric rings (e.g. H&R)

You will have problems with wheel balance and possibly damage the rim if you ever hit a pothole or something similar.

 

does anyone know where you can get metal rings then?? I've heard the plastic ones can melt. (i'm mainly going to use my rotas for track wheels)

 

Question.

Obviously wheel design factors into the need of hubcentric rings.

Are some aftermarket wheels designed to work with a our hubs the way that factory wheels are?

 

I don't think very many wheels are specifically designed for the R in particular. Mainly because of costs...They make a Pseudo universal wheel, and it fits many different vehicles (using different hubcentric rings).

 

Good point, so are there 4x100 wheels made for hubcentric.

 

I'm not real clear on what these rings are suposed to do. Can someone elaborate, or post pics? Thanks.

 

If you take one of your OEM ITR wheels off, and you remove the plastic center cap, you'll see that there is a hole in the middle of the wheel that's 64 mm in diameter. This is called the "center bore". When the wheel is mounted on the car, this fits over a piece that sticks out called the "center hub" or the "hub". Because it is also about 64 mm in diameter, it's an exact fit. This enables the hub to absorb much of the lateral forces on the wheel (like up and down forces on uneven pavement).

Many aftermarket wheels have a center bore that's bigger than the stock 64 mm. Thus the hub can't absorb those lateral forces, and the forces are transmitted to the lugs (the five big bolts that stick out through the five holes in the wheel, that the lug nuts fasten onto). These forces are in addition to the force of the lug nuts holding the wheel onto the car. So there's a lot of force all being transmitted to the lugs instead of some of it being absorbed by the hub.

Hubcentric rings are metal or plastic rings that fit inside the center bore of the aftermarket wheels, so that the inner diameter is the same size as the hub, and maintains contact with it. That way, the hub can bear some of the load of the wheel, through the hubcentric rings.

 

does anyone know where i can find some hub rings? i really need some asap....

 

Tire Rack from what I'm told. I need to ask them when I order my tires in a few weeks.

 

this is funny that now everyone said you need them , , when i posted the same post the other week no one knew what i was tlaking about and said i dont need them and they are a waste of money basically. . now everyone is saying you need them?
my friend had them on his r and the cracked anyway .
like i said , i had mine on for a while now and no rings ,, ,mines fine .

 

Tire Rack does not sell hubcentric rings except along with a set of wheels to which they are fitted.

BTDT.

 

Walee at http://www.machiii.com carries the plastic hubcentric rings in a wide range of sizes. That's where I bought mine. To order, you need to know your wheel bore in mm and your hub size in mm.

But I'm still looking for a source for metal rings. So if you know of a vendor that sells them in metal, please post...

Andrew

 

go to any custom wheel shop,theyll sell you some. the metal rings arent really neccesary unless your wheels get EXTREMELY HOT.

 

Thanks for the explaination. I guess I assumed that when you ordered a set of wheels that is said to fit the ITR that the bolt pattern and the center bore would be correct.

 

thanks, I'll try them. Are they pricey??

 

Mine were $20 for a set shipped to me from CA. I guess that might be considered kinda pricey for 4 plastic rings...

But he was the first shop I found that would sell me them. I talked to 5 other wheel/tire and performance shop places before him. Some of them did not have the size I needed. But of the shops that did, none of them would sell me the rings. Most shops (including Tire Rack) told me that they had a policy of not selling hub rings unless they carried the wheels that I wanted the rings for. I assumed the shops were afraid of a safety or fitment issue...

Andrew

 

ok so for those using the Rota's in a 15" for the Type R...what size ring should we ask for?

 

the wheel is 73 i think and the hub on the r is 64?
im pretty sure.

 

Most wheels are 73mm center bore and the ITR has a 64.15mm hub bore.

So look for 64.15mm X 73mm rings

 

go to Aleph's site http://www.sandmracing.com/
and look at his pics of slipstreams- it's got hub rings in the bag with the part # and diameter info

-jeff, who still wants to know if anyone's tracked a car with plastic hubrings and if they melted or not

 

Does anyone know the hub bore of a GSR? Is it the same size as the ITR of 64mm?

 

Ummm I just got back from Discount tire, I got 4 plastic rings for just over 5 bucks installed. I didn't keep the bag, or I could tell you.

I know it is smaller 64mm. Maybe 57?

Sorry