OCTOBER MOUNTAIN CARBON Z ILF RECURVE BOW 58 IN. 45 LBS. RH The Carbon-Z Riser is carved from a premium blend of paduk, hard maple, phenolic, carbon, zebrawood composition that is 3/64" cut past center with a crowned arrow shelf at 15" in length. It provides a broad range of customization and tune-ability with the added strength and styling of carbon. The ILF Reaper Limb weights are established on a 17" riser at 28" draw.