I have an '04 hardrock comp but I didn't like alot of its componentry so I upgraded lots of stuff. I got Avid BB7s...I learned that they have a pretty long break-in period but after that's over and you've adjusted it properly, they're a dream. I got some new downhill wheels and tires just for the fun of it. Added a longer stem and deore shifters. I also added a e13 bashguard. People say the Hardrock frame isn't worth upgrading on but screw them eh? My bike's worth about 1000 now. E-bay is your friend!