Hello All !<br /><br />I'm looking for a more durable alternative to the shimano ultegra triple chainrings (currently using 53/42/30)... I'm a touring cyclist that covers a lot of milleage and found that the shimano aluminium alloy chainrings wear relatively fast. Would any of you know of the availability of compatible chainrings made of steel or titanium ? I'm more interested in wear and corrosion resistance than in weight....<br /><br />Thanks much<br /><br />JulienD