Not dreaming. They exist.
Since you're in Seattle, how about meandering over to tiny little Free Range Cycles and asking the woman who owns the shop about mixtes? I had a lovely conversation with her once about the Soma Buena Vista mixte she was working on one day.
A mixte can have a triple just like any other bike frame. They can be as fast as any other bike frame with the same geometry.
Talk to her, she is a wealth of information about what brands of mixte are good, which are chasing a fad, which you can upgrade a million times, etc.
www.freerangecycles.com
Another (cheaper) option is the Electra Ticino. It's a double, but has a 10 spd cassette so you get 20 possibilities.
Last edited by KnottedYet; 10-06-2010 at 06:45 PM.
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson