Most people use a 2-5/8” bore for convenience’s sake. That’s 66.675 mm. 

Is there any particular size you are considering? I have not heard of anyone making the bore larger as the Mercedes wheels also came in 66.7 mm. I would trust making them bigger than what has been proven by their engineers. The bigger that bore, the cozier they will be with the holes for the lugbolts/studs.

BenT

> On Mar 30, 2021, at 5:57 PM, Bruce Todd <beeceetee@gmail.com> wrote:
> 
> A wheel question for all...Is there a maximum diameter for the centre bore
> of a Vanagon wheel - in other words, can you size a wheel with a c-bore
> greater than 66.56mm - and if so what would that maximum diameter be?
> 
> Thanks,
> 
> Bruce