I put about 3600 miles on the tires and the rear was getting near the tire indicator before I pulled them off. Since it is Winter conditions here in the Northeast I installed Michelin Road Pilot 4 tires for now. Will switch to Michelin Pilot Power 3's come Summer.
I got about 3k out of the rear before I cut it on something. On went a second Dunlop(junk) before the front got worn to replacement at around 5,500 miles. I replaced them both with Michelin PR3s and love 'em!
I got 5500 out of my Bridgestones. I put about 250 miles on the bike a week commuting to school and work with some spirited riding every other weekend or so. I replaced them with some Pilot Power 3s. Apparently those should outlast the S20s that were on the tire. We'll see.
The OEM S20s lasted me about 5000+ miles- through the winter and spring- had plugged the rear at around 2 or 3k and though I could have used them for 1000 more miles at least, I switched to PR4s. I am at 8500+ miles.
My OEM Bridgestones lasted about 4500 miles, the wear indicator was showing on the rear and there was nearly no tread left, so I switched them out for Michelin Pilot Road 4's. The Michelin's are excellent, I personally like them better than the Bridgestones, the radius is slightly different making turning feel more stable.
I also had 4509 "weekend fun" miles on my OEM Bridgestone S20 's. I was happy with the performance of the S20 but have been a Michelin Pilot Power fan on my sport bikes the last 15 years. A friend got 17k out of a set of Road 2's on his V-Strom and based on some other recommendations in other threads on this forum I went with the Michelin Pilot Road 4's. After 1300 miles of "Tennessee vacation mountain and Florida weekend fun" miles I am very happy with that choice. Turn in definitely felt a little slower initially but after a couple hundred miles I got used to it and love it now. No visible wear yet and the center still looks new. Hope to be reporting back after 10k or more on this set.