Probably have to use a larger tube like alum or titanium (larger than steel) and thicken the tube walls so the frame doesn't produce a mushy ride. I like the stiffness of a steel frame but the lighter weight of alum and titanium is also a nice feature.
Good luck in getting into the bike market. It's always nice to find new materials that improve performance and/or reduce cost.
14 posted on 11/24/2006 8:21:40 AM PST by Dark Skies
("He who knows only his own side of the case knows little of that" ... John Stuart Mill)