Archery term
Arrow Diameter
What does Arrow Diameter mean?
Arrow diameter is the outside width of the shaft, usually measured across the tube. It is a physical size, commonly given in inches or millimeters. Spine describes stiffness, so a shaft’s diameter alone does not tell you whether it is the right stiffness for a bow.
Primary source for this term: Easton 2021 Target Product Guide (2021)
Why it matters
Check diameter when selecting components such as nocks, inserts, points, wraps, or a rest, and check the shaft chart separately for spine. Two shafts can share a diameter and have different wall thickness, material, weight, and spine. Match each component to the specific shaft model.
What to check
- Check the shaft’s outside and inside diameters against the exact component specifications.
- Match nock, insert, and point to the shaft model.
- Diameter does not tell you the arrow’s spine.