In the last three years I have ridden three different bikes around 20,000 miles. MOst of these miles have been on unpaved roads with lots of road hazards. The thing that never ceases to amaze me is how flat tires come in waves. They ALWAYS do.
Riding mountain bike with IRC Mythos Slick MTB tires, 26 X 1.95. About 3 miles into ride i notice the front is going down. I stop and air it up hoping the slime will take hold. It never does. So I get off and patch the tube and complete the ride.
Same bike. About 15 miles into the ride, on a gravel section, I notice the back tire is going down. Again, i stop and air it as it seems to be pretty slow. I am able to ride about 5 miles between getting off to add air. This increases and i end up pumping about 5 times total to get home. Still this was faster than removing wheel and repairing.
Completely different bike. My other Trek 4300. It has 26 X 1.4 Ritchey Tom Slicks on it. I leave the house, early AM as usual and it is sprinkling lightly. The roadway is wet. I ride about half a mile from my house and i hear a gusher. With the wet roadway it sounds like a runaway garden hose, as the tire spins round and round. I quickly turn back home and repair the tire at home before setting off again.
So now you can see that I have had three flat tires on three different wheels in three different rides. Completely nuts. This has happened before believe it or not. Whenever i get flats, they come in waves. The ironic thing is that my last flat before this week, was probably early last Spring. In other words, probably at least a thousand or more miles ago.
I also ride a road bike. I will be riding it tomorrow early AM. Undoubtedly I will get a flat. Even though I haven't had a flat on my road bike this season. (Approx. 1500 miles)