I have an old specialized Allez elite. Not sure of the age but it's certainly not recent. It has the oversized aluminium down tube and fact carbon forks.
I need to replace both headset bearings. They appear to be identical but I'm unsure of the exact diameter and angle to order. My tape measure says it could be 41mm or 41.xx. outer angle does seem to be 45degrees but again unsure what variants there might be.
Cheers!
by ancient_odour