Maybe too exotic, but Rigi twin-seat-tube frames are really steep; something like 78 degrees if I recall correctly. Always wanted to try one since reading an article about them in an early-'80s Bicycling Magazing article, which said any teenager could ride the average race bike, but, "the Rigi ups the ante." That made the teenage me very curious at the time... Anyone have scans of that article? Banana_Brain (Baron and Cecile Corpuz) has a couple of NOS ones available, but apparently not the special Gian Roberts front derailleurs to fit the small-diameter drive-side seat tube. That could be fixed with a braze-on. San Francisco listers might be able to help locate a Rigi as well - there was a cool bike shop I visited just off Haight that had one in beater condition for sale about 6 months ago, but I don't recall the shop name... they also had a cool Mel Pinto tandem that looked like a Urago to me, just $500... Randy Dugan, Van Nuys, CA USA