Well the ride today wasn't that great. Dave noticed that my back tire was completely flat, so he aired it up. After about 6 miles, it was flat again. He put some CO2 in it and I rode home, before it went flat again. Catherine, Gina, and Dave finished the ride and come home later. So, now my bike is in the shop for that and a couple of other things needed before the MS 150. I get it out on Tuesday.