Budnitz makes some of the best city bicycles available. The bikes utilize an exclusive titanium and cro-moly steel which makes them extremely light, and durable. The majority of components on Budnitz bikes are handmade by Budnitz. Their latest bike the Budnitz Bicycles FTB Limited Edition ($7000) features 3.8 inch tires, carbon belt drive, a 14-speed Rohloff Speedhub, and of course their handmade FTB twin-tube cantilever titanium frame that weighs less than 4 pounds. The fat tires of the FTB allow it to go almost anywhere; down flights of stairs, through potholes, dirt, mud, snow, you name it. If you want the ultimate city bike this is probably it.