The new Maxima RED SD is a breakthrough in controlling Dynamic Spine in a smaller diameter (.203"ID) shaft. The new, high-tech carbon arrow shaft design has stiffer ends to contain the arrow's flex to what we call the RED ZONE®. The RED ZONE is the section of the arrow shaft engineered to contain Dynamic Spine and make a broadhead shoot more consistently. The smaller diameter Maxima RED® SD delivers improved penetration and reduces wind-drift which enables more accurate shots at longer distances.Dynamic Spine Control - Patented high-tech carbon material construction that manages dynamic spine in a new way to make broadheads fly better. Maxima RED SD uses different carbon materials to control arrow flex to the RED ZONE.
SD - The Maxima RED® SD shaft features a .203" Inside Diameter for better penetration and less wind-drift.
RED ZONE - The section of the Maxima RED® SD arrow shaft that manages arrow flex in flight, which is called dynamic spine. The RED ZONE® is the best section of the arrow shaft to contain Dynamic Spine and make broadheads shoot best.