In 5 years of cycling I can only recall 3 or maybe 4 flats out on the road. I've had other flats occur in my garage, in the house, or even one last week just as I was pulling into my driveway after riding home from work. Got lucky on that one, as I didn't have a pump with me. That was my first flat on my Big Apple tires in over 2,000 miles I've put on them. I had some 1.5" Bontrager hybrid tires on that bike before which had a couple of flats out on the road. I was glad to get rid of those tires.