You laugh, but Tim Brummer did a 40K on a bent in 52:22 at 28.5 mph and a 225W average. Now, stick somone on there that can maintain 300W for an hour, and you have the makings for a record. Of course, with the UCI and USCF if it were legal, it'd be immediately illegal. Heck, even Lance said if they'd allow recumbents in the tour, he'd be using one. The aero advantage is HUGE.