The Arrow Calculator will automatically select the proper spine given your draw length, draw weight, and point weight. All arrows will ship fully built with the 45/50 (XD and HD/XR) Centric System components and AAE Hybrid 26 vanes.
ARROW CHEAT SHEET
Choose the shaft you prefer.
The calculator selects your spine. Here is the quick difference between each Day Six shaft.
HD .166
The original heavy-duty micro-diameter arrow for hard use.
XR .166
Ultra high-modulus graphite for exceptional strength-to-weight.
XD .204
A 5 mm shaft that balances speed and durability.