the first thing i look at buying a used bike is the tires. if it has under 6,000 miles on it and the tires are worn out i pass. also if their are scrapes on the underside. does it mean the bike is damaged goods NO. but i always found a bike in better shape. if the bike still has lots of rubber and no scrapes you figure it was not beat on to much. it is ok to ride hard and use up a motorcycle. some do some dont. i dont.
How long does your stock rear dunlop tire last? I only have 1,800 miles on mine and its to the wear bars! I do like to open up the throttle a lot though.
Don't know 'bout dunlops... my '03 came with Bridgestone Battlax BT-012's They were usually gone at 6k miles