I buy my Tufo's online from BikeTiresDirect.com. Seem to be pretty decent prices. None of the LBSs around here carry them so I pretty much have to. I use the C S 33 Specials and like them a lot.x I just bought another set, and not because they were worn out, I bought them in case I were to have a problem, I don't want to be without them for the week or so it would take for them to get here.