I finally tried a 29er Fisher, X-Caliber today and liked it very much. I loved the feeling that the bigger wheels gave me over bumps as well as for my height. It was only a 19 inch, but gave me a sense of what to expect. I found it interesting that the effective TT of the 19 inch X-Caliber (24.7) is nearly the same for the 22 inch KM (24.9). The 21 inch X-Caliber is a long 25.5. Do any of you tall guys who ride a KM find it at all cramped? I am 6'5 with a long torso. This will be my first mountain bike and it is complicated by the fact that the bike shop was not sure if they can even get a 04 X-Caliber in 21 inch and they do not think the 05 is coming until October.