Light Street Cycles is located in the heart of Federal Hill. The employees there are very helpful with repairing and outfitting bikes, and give great advice on getting around the neighborhood, where good bike friendly paths are, etc. The rent bikes to people visiting from out-of-town, although if you are looking to buy a bike they will arrange that for you as well. They are quite involved with the biking community around B'more and surroundings. They give friendly prompt service too.