Originally Posted by
merlinextraligh
I've had Continental 4000's fail at that spot on both singles and tandems. However, I don't think the risk is unique to Continentals, and any lightweight racing tire can fail like that. How old were the tires? The casing threads can fail before the tread is worn out, particularly if the tires have some age on them.
Your failure might have been age related, road hazard, manufacturing defect, or a combination. I think all you can do is inspect the tires regularly, replace frequently, and/or go to a more robust, heavier tire.
The tire was about 5 months. I was thinking maybe age and replacing before the wear indicators show replacement. I switched from Michelin to Continentals maybe 5 or 6 years ago so I could get 700x25c on the front. This was the first failure.