Sorry for possibly the most boring post of the day.
I'm servicing a mates bike, including replacing all chainrings.
I purchased a Deore M532 32-t 4 bolt middle ring but it doesn't quite fit on the exisitng hollowtech crank arms. It's as if the tabs containng the bolt holes are slightly too long and won't fit into the recesses on the arms.
Of course, I chucked the old rings before ensuring proper replacement so now can't compare. The small and big ring fits fine just the middle ring doesn't.
Any help gratefully received!