I am in desperate need of some new meat on the rear of my bike. I called the local shops here in town and noone seems to have the Dunlop 739 that I am looking for in stock. One dealer tried to sell me on the IRC Vulcanduro tire. He said it is a great long lasting intermediate/hard terrain tire. Im not sure though because I seem to remember one of my friends having the sidewall blow out on him on one after only 2 rides. Anyone have any input on this particular tire before I go buy it?