> I am looking for a Campy chain ring close to 42 teeth but the bolt
> distance is 148, which threw the LBS into a posture about how it must be
> custom or machined as a 'one of'. So I'm widening my search. The crank
> arms are 165mm & marked PISTA, otherwise looks like the usual. Anyone
> have any - or any leads.
I'd re-measure, or at least try a ring with a known (e.g. 144mm) BCD. Campy made 151mm and 144mm, but not 148mm. And if it is actually 148mm, a 42T ring will not fit.
-John Thompson (firstname.lastname@example.org)
Appleton WI USA