Join Date: Apr 2002
Location: Terrible Hole, IN
Some of your performance questions can be answered here
. And as far as which is fastest, it's the one with the best rider.
I had an XX and it was a kick ass bike in every way, IMO. The only thing I am not sure about is the track. I've heard that linked braking systems can really screw with you on the track, but have no personal experience with it myself. Just something to think about/look into.
All of the bikes you listed would be very capable of doing everything you mentioned, so I'd go with the one that makes you feel all tingly inside.
The God of the Old Testament is arguably the most unpleasant character in all of fiction: jealous and proud of it; a petty, unjust, unforgiving control-freak; a vindictive, bloodthirsty ethnic cleanser; a misogynistic, homophobic, racist, infanticidal, genocidal, filicidal, pestilential, megalomanical, sadomasochistic, capriciously malevolent bully. - Richard Dawkins, The God Delusion