I've got a 2004 Hardrock in addition to my Allez and fixed gear. I don't do much proper mountain biking though. I need to loose some more weight before I give single track a try. Having this extra weight wouldn't be all that great if I where to go down.
How does your buddy like the Surley? From what I can tell they make a good bike.
How does your buddy like the Surley? From what I can tell they make a good bike.