Coming home last night it was just starting to rain with heavier stuff moving in, so I was pushing for more speed. I hit a rock and popped my front tire. I changed in the spare tube in the rain, but it was old and had a slow leak so I had to limp home slow and careful stopping a few more times in the heavy rain to pump the tire up some more. I changed in a new tube at home and put in another new tube for the spare. I was distracted and rushed putting in the new tube, so I didn't get it on right. This morning I got 3 miles from home when it went flat again. I spent 20 minutes trying to pump up the new spare, but the valve was defective and could only hold about 10 PSI. I limped the bike back home and drove in to work 15 minutes late.

I'm switching to my other wheelset to try to get rid of this bad juju.