Was thoroughly enjoying my commute home last night as the gusty headwinds of the previous two night's commutes was finally gone. Then, just as I start really cuising, the back end of the bike feels loose. Yes, a flat. Can't complain as it has been 2 1/2 years since I've flatted on a commute. I replace the tube, pump it up and continue on my way. Once home, I top off front and rear tires and install the new rack trunk that had arrived earlier in the day (wanted to dump the panniers during the warmer months as I am not carrying as much stuff).

When I grabbed the bike to head out this morning, rear was flat again. Not sure if the replacement tube (which had been previously patched and tested) was the culprit or if I missed the cause of the flat in the tire (though I did a pretty thorough check) or I might have snake-bit the tube riding with the pressure a bit low (being close to home when I flatted, I didn't bother getting the tire up to full pressure but maybe should have). So it sits in the garage and I drove to work.