The pista concept is light and stiff, but for me it was a bit too harsh for an everyday ride. If the ride quality suits you, there is only one problem with the bike -- the wheelset. For 2005, the concept comes as a whole bike, not just a frameset. Mavic's Ellipse track wheelset sucks. They look plenty nice, and the rear is double-fixed, but the chainline sucks. I measured it at about 46 or 46.5mm. Since almost all track crankset/BB combos put the chainline close to 42mm (including the Sugino 75 with matching BB which comes on the pista concept), this is a problem. The drivetrain was noisy as hell, and I'd be afraid of throwing the chain. I mean, I guess you could put in a longer BB, but then you end up with a wider Q-factor and all that. I talked to Mavic's tech support and they could give me no reason why the spacing is set up like that. Poor design.

So get a concept, but make the bike shop trade you out for some better wheels.