Originally Posted by
fietsbob
IDK should, I'd Measure what IS.
Selle Anatomica has designed their saddle rails to slide back further than Brooks.
I have 2 Fizik Vitesse saddles one a batch shipped through Brompton Sales ,
allows a further setback than the regular ones , because of how the rails are bent,
and that was specified by the OEM customer.
I'm sure Frank with his experience can say a lot more than that about what should be, but I completely agree with measuring and understanding what IS.