Yep, a bit lighter than our titanium. With the right mix of large diameter tubes in the main triangle and smaller diameter, more forgiving stays, Aeroluminum LeMonds offer an optimum balance between stiffness and long-ride comfort. Aeroluminum LeMonds are the choice of the Saturn Cycling Team. The oversized down tube makes their drivetrains stiff, efficient, powerful fast. Not all aluminum designs will be as kind to their riders as LeMonds - there is a point of diminishing returns with aluminum.
Enough stiffness is enough.
Notice the unique LeMond rear triangle. Notice the relatively short, yet not overly large chain and seat stays. A bit of engineered forgiveness from the pavement. As Greg knows better than most, a comfortable rider is a faster rider. There are few finer riding bikes anywhere.