Originally Posted by
onbike 1939
I remember the editor (Frank Berto?) of a well-known American Bike magazine did a series of tests involving the durability and hardness of the materials used in making chain-sets way back. He found that Campag used the hardest grade of aluminium at that time.
I remember the book he wrote sometime in the mid to late 80's also. IIRC, his tests showed Campy and Shimano made the hardest chainrings and TA the softest.