Originally Posted by
Andy_K
So, my conclusion is that given two tires both used for 2000 miles in similar conditions if one tires gets 6 flats while the other gets 0 flats then I can, in fact, trust my belief that the tire that got no flats has better flat protection.
The next thing I'd like to know is how many flat tires you need to get before you can conclusively say that a tire is not as flat-resistant as another tire that got no flats.
I believe you would want to ride several individual Tire As and several individual Tire Bs for 2k miles each to find a distribution of flats/2k miles for each model and at the end of that you would know how typical your 6/2k and 0/2k results are likely to be.
For me flats are not random, generally when a tire starts throwing too many flats in a short span I chuck it regardless of apparent wear. That has only happened to me past the 1k mark, if it was the 1st week then I might evaluate differently...