An friend of mine and I were talking about bikes last night and he asked, "wasn't the Columbus SL tubing allways lighter than Reynolds 531?" I couldn't give a definitive answer. My inclination was to agree. However, I have a digital scale that is on my bike stand and thought about some of the bare frames (sans forks) that I have weighed. The Colnagos built with SL are typically around 1900 grams but so are the Masi's built with 531. A Windsor I just bought made of SL is actually heavier than a Raysport I have made of 531.
Does anyone know of standardized tubing weight measures between 531 and SL for comparison?
Jeff Pyzyk
Milwaukee, WI