Run an 03 sv650 had for many years. Tried Dunlop qualifiers (good but v short life) pirelli diablo Rossi II's (as good grip, better life) but for the last few years I've been running Bridgestone BT-023's, which have pretty much as good grip and last a lot longer. Although a smaller bike the v-twin puts a lot of torque through the back wheel so does get through rears (and chains lol but that's another subject), 2 sets of rear for one front on the current set. My gripe with the bt-023's is how they wear, the rear squares off whilst the front almost does the opposite, my front has a ridge in the centre whilst worn down on the sides, making cornering a little weird as when you dip the bike it goes smoothly to a point, then drops down a few more degrees real fast before catching again, which is a little disconcerting. I after suggestions as I fancy a change and trying something else. I ride in summer mostly commuting about 40 miles a day, I don't ride that hard, so sacrificing a little grip for touring style tires is fine, to get more life. Really need a hard rear though, Bridgestone make a "gt" version rear but starts the next size up I've even contemplated using a harder rear Vs a more sportier front as would be ideal to have a set that will wear evenly.