I think someone now has one that retains the steel shell but replaces the inner part with aluminum. the all aluminum weight is about half the stocker and the one that is half + half is two thirds the weight of the stocker. Buells are geared about perfect unless you plan on going to do any land speed raceing or use it for tight trial rideing or if your engine is produceing more than 120 horse power first gear only lasts about 20 FT.