In no thread in the archives is listed what the wheel and hub center bore specs are. Is there a difference between the series 1 through 3? Obviously there is with the GSL-SE.

Based on my micrometer measurements, the hub bore of the Series 2 RX-7's is 59mm. Is that accurate?

I cannot get a solid reading off of the stock waffle wheels regarding center bore either. Are they 60mm?

 

the 12A cars are all the same, if you got 59mm that sounds about right.

notice please that while you want the wheel to be centered on the hub, it also needs some clearance, so when things get hot the wheel doesn't get stuck

 

59.6 is the factory bore size until the FD.

 

Awesome, thanks! I've gotten confirmation from three sources now that that is in fact the size.