Originally Posted by
fietsbob
a scheme where you must return to buy spare consumable parts in the drive train is a profit center..
Campag's 50-34 chainrings are 4 x 110, & 1 @ 114 bolt circle diameter ,
another plan to send you back to them for spares..
It is a business choice..
....
Of course but it is just silly to do a different BCD then you already make. You can make more profit using what you already have rather than going to something new that you abandon. Granted the new cranks from Shimano and Campy and others have odd BCDs that aren't standard but I can see why they do it now but a 5 bolt crank should stick with a BCD that already exists.