I have seen some used kona explosif and rm blizzards for sale on the internet. The bikes look to be in good condition overall and are about 2 to 3 yrs old. I have never ridden either one of these. I have heard good things about these bike. If you had to pick one which one and why? But I guess U could not make a wrong decision. They do not have disc brakes on them now. I did have a gary fisher advance back in the day (which was a cro moly frame).