Shaft Size Identification

Easton uses various arrow shaft outside diameters and wall thickness to obtain the necessary number of shaft spines needed to shoot well from nearly all bow weight and arrow length combinations. The outside diameter is the main factor in determining shaft stiffness. This diameter is coded in the first two digits of the shaft size number—for example, in 2312, the 23 = 23/64".   This is the shaft diameter rounded to the nearest sixty-fourth of an inch. The wall thickness code is the second two digits of the shaft size number. These digits indicate the shaft wall thickness to the closest one thousandth of an inch—for example, in 2312, the 12 = 0.012". The wall thickness is the main factor in determining the shaft weight. For two shafts of the same stiffness, a larger diameter, thin-walled shaft will be much lighter than a smaller diameter, thicker walled shaft.

Easton Aluminum Shaft Weight Groups

Easton aluminum shafts are classified by weight groups. This provides archers and bowhunters a way to choose a shaft model based on performance. The lightest groups provide the highest speed and flattest trajectory. The heavier groups are chosen for durability and hard hitting performance.

• UltraLite aluminum – .012" wall thickness

• SuperLite aluminum – .013" - .014" wall thickness

• Lite aluminum – .015" - .016" wall thickness

• Standard aluminum – .017" - .020" wall thickness

Top Page

Return to main Index