Warning ! Bought these tyres, took them to my fitter and they are out of date! These are 2013 manufacture!
I aske Avon about the DA bit there response was:-
The British Rubber Manufacturers Association advise tyres should be used within 6 years of manufacture. The tyre should then be removed after a total of 10 years.
Avon recommend tyres should be used within 5 years of manufacture. The tyre should then be removed after a total of 7 years.
DA denotes ‘Defective Appearance’ and this is purely a cosmetic defect.