15" BBS RS Lip/Barrel Bore Size

[mx5roadster]

Hello,

I am looking for the bore size of 15" bbs rs. Not the center bore, but the bore of the lips and barrels.

E.g. this measurement (example show, not actual lip):


I am hoping the bore size will be close enough for a project I have in mind. Thanks.

[OrangeBlue]

12.25" iirc...

[Oh Damn, it's Sam]

My sources say 292mm for RS 003s, which are small-face.