Inspired by the Rivendell "Bombadil" bicycle, I revisited the vintage mountain bike-as-a-townie concept with this build, starting with a 1983 Univega Alpina Uno hardtail frame. Made of stout cro-mo tubing and featuring a gorgeous "biplane" fork crown, it makes a handsome base to build up a fun "around town" bike that can also handle gravel paths, fire trails, and the rough roads of New York City. It has a 47cm c-c seat tube and 56cm c-c top tube, making it a good choice for riders 5' 5" to 5' 10". Read on for more detail and pictures…