Are you trying to say there is no hub on the 07's ?!?

Basically like the center part on this image is not there:

http://www.mbzponton.org/images/mb_b...190_front7.jpg

 

I know for sure the 07 uses conical lug nuts. I would think that if the 07 were hub-centric, the lug nuts would be flat so there wouldn't be interference problems. In any case here are a few snapshots of the front drivers side. Maybe you can provide some insight.

Rotor On:


Rotor Off:

 

It is true....the 07's have a different lug nut set up then the earlier sedans. They are a rounded/conical type. I noticed this right away when I pulled the first nut off.....very odd.

Giving this a little more thought, whenever I pull a rim off and re-install it usually has a bit of a shimmy for a few miles and then returns back to normal. I actually pulled over once to re-check my lugs because I thought I might have something wrong.

 

i installed my rims today...it wasnt a problem at all putting them on. That little offset bolt on the front rotar had to be removed thats about it.

Ill take some pics and post them tomorow.

 

im running 275s (10") in the back and it's a tight fit when the car is full..eyeballing it, i dont think 295 would fit. if it does, im getting it.

 

where would you get these hubrings?

 

I don't think the 07 is hub centric like earlier models. The wheels are centered using conical lug nuts.

 

sorry to hijack the thread further but the reason i'm asking is because i'm running pretty big spacers (15mm) that are supposedly hubcentric but..if the wheel isnt hubcentric then there's no point to the spacer being hubcentric..or am i missing the point?

in addition to the new wheels, i replaced both the studs and the lugnuts, so does this mean the entire weight of the wheel is on the studs? is this a problem? it does seem that there is enough of a 'hub' to center the wheels though..there's at least 8mm poking out

 

i dont think u quite understand what hub centric means. all stock wheels r hub centric, only aftermarket wheels r not. hence the use of hub centric rings.

 

BTW i have 19x10 +37 with 275's on the back and no rub. i think 295's r doable but easier with 10.5" or 11" wheels so the tires dont bulge as much.

but honestly, why the hell do u need 295 for the street anyways? our cars dont even make enough power to make use of the 295's......

 

Most rim shops have the rings instock if not you can order them online.

The 07 are hubcentric. The wheels are centered by the hub. As ommmjido pointed out, all OEM wheels are already hub centric since they were made for that car in mind. After market wheels are not because they need to fit a variety of cars. So they usually make a larger hub bore (73.1mm) and use rings to bring them down to fit a particular car (66.1mm for infiniti).

The lugs nuts your taking about are pretty much standard acorn style lug nuts, they are tapered at the end, my stock ones were like that. All aftermarket wheels and brands such as volks and iforged, which are NOT hub cententric, are made to use acorn style lugs nuts because that grip more side wall and resist coming off.


I used your picture:

That is the hub. I bet you that if you put 5 wraps of eletrical tape on that and tried putting putting your wheels back on it probably wont even go back on. The arrow with 2 on it is just to show that that bolt is the staggered bolt. It's there to keep you from putting the front wheel on the back.

 

Sorry, let me try to clarify ... the goal is to place the wheel prefectly coaxial to the axis of hub rotation so vibration is minimized. I'm not a wheel expert (just an engineer), but I know the stock wheels do in fact have conical lug nuts to perfectly place the wheel relative to the studs. The stock wheels actually have clearance so the center is not used. If the replacement aftermarket wheels are made for conical lug nuts, they will center perfectly assuming they were drilled with the right bolt circle and pattern. However, if the aftermarket wheel is NOT machined for conical lug nuts, another method (rings?) will be needed to center the wheels to the rotor.

As for the weight being supported by the studs ... I wouldn't worry, that's how the stock configuration was designed. The 15mm spacer only moves the wheel out about .6 inches which is really not much (considering what the wheel sees when going over a pot hole for example).

 

I don't think I have ever seen 295 on the rear of a sedan without body work.

 

I agree ... you can center using the studs or on the tiny edge of the hub. But with wheels drilled for conicals nuts like the ones mentioned, they should still center even if the center bore of the wheel a lot bigger than the hub. If a ring is used to center the wheel, I would think flat lug nut / washer should be used so the wheel can "float" to the center before tightening.

 

^Yes you can center them using the conical lug nuts, it would be a lug centric setup. However a hub centric setup would be much better since both the lug bolts and hub will bear the forces of the wheel. The factory setup is hub centric. The OEM wheel fits over the hub. It makes no sense if nissan was going to put a hub there and make a wheel with a very large center bore, so it wouldn't use the hub, even though a hub centric setup is much better.

From wiki:
"The centerbore of a wheel is the size of the hole in the back of the wheel that centers it over the mounting hub of the car. Factory wheels have a centerbore that matches exactly with the hub to reduce vibration by keeping the wheel centered. Wheels with the correct centerbore to the car they will be mounted on are known as hubcentric. Hubcentric wheels take the stress off the lug nuts, reducing the job of the lug nuts to holding the wheel to the car. Wheels that are not hubcentric are known as lugcentric, as the job of centering is done by the lug nuts assuming they are properly torqued down. Centerbore on aftermarket wheels must be greater than or equal to that of the car or the wheel will not physically mount to the car. Many aftermarket wheels come with hubcentric rings that lock into the back of the wheel to center it like a factory wheel, usually made of plastic."