Originally Posted by jimmuller

Unfortunately that tire, a sew-up, hanging under the saddle doesn't hold air. It started the ride on the front wheel. I had decided to ride through downtown Waltham as a direct route to some nice roads in Lincoln and Concord. About a mile and a half from home that tire went Pfft...fft...fft...fft... Dang. A tiny hole right in the middle of the thread. Fortunately I carry two spares. Did a quick swap, rode on. Unfortunately too the spare didn't stick to the rim as uniformly as one might wish so it went clickity-click, clickity-click, clickity-click for the rest of the ride.