When I read threads involving wheels, the word "hubcentric" keeps coming up as well as "center ring/caps". Anyone care to explain it to me and tell me what are their benefits?Thanks.

This link in Tirerack will explain it: http://www.tirerack.com/wheels/tech/centerb.htm . Note: "With a hubcentric wheel, the lug hardware will not be supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car."

Thanks for the link, now I understand it a little more.

There seems to be three type of centre bore support.
1)The wheel has a hole that fits and supporst the hub exactly.(Hubcentric)
2)The wheel uses a forged centering ring which is another alternative to 1.(hubcentric)
3)The wheel just uses it's lug nuts to support its weight.
(lugcentric)

From King's website,the Mugen MF10 is "Mugen's original design achieves a good center hub fit and is Mugen's standard". So I guess that it falls under option 1. Does that mean the center cap that Mugen offer is only for cosmetic purposes since the wheel is already hubcentric?

A hubcentric is someone who polishes his hubs every 48 minutes. There is no known cure.

[QUOTE]Originally posted by nwk00
[B]From King's website,the Mugen MF10 is "Mugen's original design achieves a good center hub fit and is Mugen's standard". Does that mean the center cap that Mugen offer is only for cosmetic purposes since the wheel is already hubcentric?

[QUOTE]Originally posted by nwk00
[B]Thanks for the link, now I understand it a little more.

Huh? I thought if it is hubcentric, it is means that it is hubcentric all the way through. Why are two devices needed? I can't really picture it in my mind.

Hubcentric = ID of wheel matches OD of hub. When ID of wheel is too big, use an adaptor ring that converts ID of wheel to match OD of hub.

Note: S2000 Front and Rear hub OD's are not the same diameter.

[QUOTE]Originally posted by RT
Hubcentric = ID of wheel matches OD of hub.

I just measured the rear oem wheel center opening and it seems to be larger than the center ring of the mounting point and the same diameter of the Spoon. If correct, the Honda oem wheels are "lugcentric"!