Say what? They are still fitting the same hub.....

 

I wasn't sure so I looked it up.....
http://www.miata.net/garage/hubcentric.html

I really don't see an issue with centering the wheel with the lugs anyway. They do all the work regardless.

 

The wheels being hubcentric is a different thing. Dirtsurfer was refering to the rotors not being hubcentric. Rotors would be an issue if it is so. Me, I thought the hub holes on the bigger rotors were the same diameter as the stock ones.

 

They are what's classified as "floating" rotors. Hub centric isn't an issue. THe wheel itself holds the rotor in place.

 

Thanks solman. I didn't word my last post very well. I know how they work, but my brain and my keyboard fingers aren't connected sometimes.

 

I can relate......

 

The rotors have the same size hub opening as stock hhr rotors. Trust me, I researched for a few weeks before even ordering stuff. And no issues so far with mine. Really do like having better stopping power though.

 

I have a feeling that I'm going to end up doing this at some point.

 

Although I agree the wheel holds the rotor in place..

Our rotors & SS are "Fixed 1 piece rotors"..

"Floating Rotors" are quite different, they are actually a 2 piece floating rotor...That is bolted together thru islolators to allow the friction surface to align as needed..


But this mod I can see doing should the need arise....

 

This is a 2-Piece rotor assembly from Wilwood, the center section or "hat" is separate from the friction surface.

As sleeper stated this design allows for some movement during braking that allows for self-alignment of the friction surface.

If you watch NASCAR you're probably familiar with cars smacking the wall and "breaking a rotor", its actually just the outer friction surface that breaks.