So I was patching tubes the other day, a chore I find needs doing every year or so, and I realized something that seems significant, at least to me.

Background - Until the spring of 2006 I was commuting on my fat tire mtb, running 1.5" City Slicker tires. In June of last year I got a road bike and mounted 700c28 Continental Ultra Sport tires on it. The mtb is now the rain/snow bike. My commute is 20 miles RT mostly on nice bike paths, my bike is the only way I go to work.

Anyway, I have had lots of flats on the mtb, mostly from little pieces of wire and various unknown punctures, but in the two seasons on the road bike I have had exactly two flats and they were both my stupid fault.

So, is this just luck or are skinny tires really less likely to flat?