14,000 miles. 'Nuff said.
I commute on my bike to and from work every day, year round. It works out to between 3,500 and 4,000 annual miles on that bike. I installed a Contact II 26 x 1.75 on my front wheel in June 2012 - and finally replaced it last week (September 2016). Four years at 3,500 () miles per year works out to - well, if I didn't keep meticulous maintenance records, I wouldn't believe it myself.
Most of my daily ride is on a reclaimed rail bed (so no glass, gravel or potholes) and the tire was worn nearly to the threads when I did replace it. To be honest I probably should have swapped it out a year earlier, but I wanted to see how far it would go and finally did only when the rubber began to separate from the threads in places. A couple of times in the latter stages of its life I suffered a couple of flats from debris that a newer tire probably would have repulsed, but I was still going several weeks or months without a problem.
I have to change out the rear tire every couple of years, but 6,000-8,000 miles is nothing to sneeze at either.
Anyhow I really like this tire - it's perfect for my uses and I'll keep buying them as long as Continental keeps making them.
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