I was set to do a makeup trike ride this morning since I missed out yesterday. Last night, the wife and I are sitting down watching TV when we suddenly hear this pffffft sound. Couldn't figure it out until I walked by the trike and there it was, another flat, rear tire. That was the last spare tube she had so I have to run by the bike shop and get some rim tape, some tubes and a patch kit. Gonna take out the old rim tape to check all the nipples and see if one of them has a sliver poking through the tape that I can't see. In the meantime, I'll bring in the bike and try and get some miles going and see how the shoulder holds up on the handlebars and the aerobars. If I don't have a flat on the bike, that is!