I may be picking up a set of wheels with a 71.5mm centerbore, and i'll be using them on my FD with a 67.1mm centerbore.

Does anyone know where to find (or have made) adapters for this? thanks

 

When searching what a hubcentric is I found this website http://www.prestigewheel.com/mainHubRing.htm Their website has a phone number to call for custom ones.

Seems like anybody with a lathe can make these. Shouldnt be to difficult to find someone to make these. I have a lathe Rich .


John

 

you dont need em. promise.
ive been running slicks with spacers for years

 

This was my thought. I don't see any use for a hubcentric. Could someone explain why you would need one, or what benefits you would get over a wheel without one? My thinking is that the lug nuts would pull the wheel up perfectly center by design anyway... assuming you didn't put them on goofy or didn't properly torque them in the first place.

 

The reasoning behind a hubcentric ring is to place the weight and stresses from the wheel onto the hub, not just rely on your lugs to carry all that load. Not using them wont be the end of the world, but for how cheap they are and for the piece of mind Ive always used them.

Rich try contacing Rishie, ive gotten a set off him before. If the wheel you are looking at is an aftermarket it probably has a fairly common bore size for aftermarket wheels, he should have what you need.

 

hubrings are cheap aluminum, and if they actually had much load on them they would just deform.
the studs take all the load, its what they're designed for. thats why they're hardened steel.

but yah, they are cheap enough, and if its something you're concerned about, it definately doesnt hurt to run them.

 

Here is the reason why you want to use a hubcentric according to prestige wheel http://www.prestigewheel.com/Catalog/HubRings66_67.pdf Of corse these are the people selling you the hubcentrics, but what they say makes sence to me.


John

 

IIRC Discount tire can order these for you in Aluminum. They carry lots of different sizes. Pay for it at location and pick it up when they come in. They were like 20 bucks

Its been years since I last ordered a set so I dont know if its still available, but that's where I bought mine and have been happy. Stay away from the rubber ones. They will deteriorate fast and faster if you track the car as the wheels/rotors get hot...

 

Hub centric is a better connection interface than lug centric. Safer too if your car sees track time and lots of g forces. The hubs are much stronger than the lugs. Eventually the lugs will fail if you stress them more than they were designed for by not using a hub centric wheel.

Just b/c you haven't had a failure yet doesn't mean you won't eventually. I ran lug centric on my old VW for years w/o issue. However, now I know the risks now and will not run lug centric wheels again.

Google for articles on the topic. ARTICLES written by professionals not forum opinions....

A god set of accurately machined hub centric rings is not the same a "cheap aluminum spacer".

http://www.tirerack.com/wheels/tech/....jsp?techid=91
http://www.tirerack.com/wheels/tech/...sp?techid=110&

 

The actual load transfer from the wheel to the hub occurs by means of the clamping force and the friction between the wheel and the hub, through the brake rotor. Very, very little force will be carried by the center bore of the wheel making contact with the little protrusion on the hub. Likewise, very, very little force will be carried by shearing or bending loads on the studs.

That said, using centering rings is a good idea, because it is more likely to get the wheel closer to centered and reduce vibrations and other stresses.

 

If you prefer aluminum:

http://www.amazon.com/73mm-67-1mm-Al...0006161&sr=1-1

 

i found these:

https://www.justforwheels.com/index....cat=hubcentric

less than half a millimeter off.

 

Big trucks as in 18 wheelers are mainly stud pilot there is no need to go above and beyond studs.You also can by better quality of studs.Do i dare start on dayton wheels these are the wheel you see wobbling down the road. They are just a wedge and bolt.And another would be unilugs still stud pilots.You can spend your money if it makes you feel more comfortable if you want

 

I got mine with spacers I purchased from Rishi at Auto RnD. He might be able to lead you in the right direction.