The most common muscle bicycle frame is the cantilever. Learn other vintage muscle bike frame features from abicycle expert in this free video. Expert: Vin Vullo Contact: www.oldroads.com Bio: Vin Vullo has been buying and selling vintage bicycles since the 1960s. In 1995, Vullo founded Menotomy Vintage Bicycles and moved his business to the web. Filmmaker: Christian Munoz-Donoso