For those with 5x100 Rota wheels

[mdungelman]

Do you use hubcentric rings? If yes, what size are they?

[jwebsta32]

+1

[cman7]

I don't use any. I'm not really sure if I'm supposed to or not. I haven't had any issues though.

[jwebsta32]

I dont run them either and havent had any problems yet, but my friend who is on rotas ordered a set of the rings for his wheels. So I am curious...ill have to aks him

[tC2WRX]

never came with my grids

[HamSocks]

Wheeldude.com sent me a free set with my wheels. I think the rings offered on their site are 56.1mm. Can't really tell you if they make a difference or not. What's the purpose of them? To cut down on vibrations? Kind of useless when the cheap-o wheels themselves have warped.:(

[Seraphinwolf]

I had set with my konings and lost like two of them then never bothered to get a set for my other wheels. If you can find any buy extra. They are worth it in yhe long run in my opinion.

[mdungelman]

After some searching I've found that the hub bore is 56.1mm, which is the hub size for 5x100 Imprezas. So no hub centering rings are necessary, at least for 17x8" wheels. Example (http://www.wheeldude.com/catalog/product_info.php?products_id=18)

It looks like the dual-drilled wheels (5x100, 5x114.3) have a 73mm hub bore and should probably have the necessary rings.

[Berge56]

I have rota formula 18x8 rims on my 04 WRX.... I do not have the said rings... have not noticed any problems. What is the purpose of these rings?

[Dusty B]

Dual drilled wheels tend to have larger bores and require hubcentrics on vehicles with smaller bores (obviously dual drilled they are intended for a few different makes and models of fitment) ... If you run a small hub with a large bore and no centric ring, you can shear off studs or break them very easily... a dangerous situation.

When I bought/had my 240 a couple years back, it had knockoff volks on the car. Apparently the dumbass previous owner installed the wheels without the hubcentrics... Took the car out for the first night and out of nowhere get a nasty vibration. Pull over to find 3 out of 5 studs sheared... Take a friends car, run to napa, and go back to do some roadside stud changing. Find no hubcentrics on the wheels :unamused:. Fix those studs, start driving again, get ANOTHER vibration, aaaaaaaand the same problem on the left side:spin:

It was a long night.

[Bombay994]

ive got 5x100, 18x8 rota p45f's and no hubcentrics, no room for any either, wheels sit flush against the hub bore.

[mdungelman]

Wheeldude.com has info on all the wheels including the bore. All of the 5x100 wheels have a 56.1mm bore which fits us non-05+ STI perfect.

[Robk0000]

i dunno crap about wheels except if they fit and look good. They stay on. :)

[mdungelman]

This is true. And by the way Rob, stop living in the past and update your vehicle info.;)

[shtbxr22]

My 18x8 Rota Torques do not have centering rings. no ill effects. I still don't know why you would use them even if you had them.......aren't the studs supposed to be centered on the hub? also when the seat of the nut matches the wheel shouldn't it be perfectly aligned to center on the hub anyway? I don't get it.

[mdungelman]

Yes, our setups are meant to be lugcentric, but hubcentric rings will take up the extra space so there isn't room for free movement on wheels with an over-sized hub bore.*

*this is just an idea. I don't really know what I'm talking about, but it sounds ok.

[shtbxr22]

:lol:

[ValuePack]

Ex tire guy wisdom here... dunno how good this'll be, I should've gone to bed days ago, sorry if it doesn't make sense.

The purpose of a hubcentric ring for any aftermarket wheel is to close the gap(many aftermarket wheels have a universal 73mm center bore) between hub and center bore. Depending upon the car, this tight tolerance is required for proper centering of the wheel in relation to hub and lugs, for the purposes of reducing vibrations and excess stress on the wheel studs.

If your car has a ~56.1mm hub and your aftermarket wheel's center bore matches, the people who designed and built your wheels probably give a **** and would like your return business. Congrats, you've given your money to a proper party.:)

Stay away from cheap rings. The only plastic ones worth buying are made by Falken, but they'll still be useless when in use on a car with with legit race brakes(read: they'll melt). Aftermarket rings are available both off the shelf and custom all over the web.

[Bu11dogg2]

^nice!

It's funny how this thread just answered all of my questions at once :lol:

[mdungelman]

It is rather informative.

[Snowman87]

It is informative... But I am still clueless. :spin: