-
Exactly - the dream would be an aftermarket spider to accommodate 110 outer and a low-bcd inner. I couldn't find any 11 speed / 74bcd chainrings... where have you seen them? (I think the Spa ones are 9-10 speed although it doesn't actually say on the website).
I could get down to 32t by using a Shimano style 4 bolt spider and with oval chainrings.... very big spend for not much difference.
EDIT: or even 30t... more tempting but £70 for a single chainring, gulp!
In 74bcd yes, not in 110bcd, the bolt would go through the teeth.