Arrow spine is one of the most important factors affecting arrow flight.
Incorrect spine causes poor accuracy and inconsistent performance.
What Is Arrow Spine?
Arrow spine measures shaft stiffness.
A lower spine number means a stiffer arrow.
Example:
- 400 spine = stiffer
- 700 spine = more flexible
Why Spine Matters
When released, the arrow flexes around the bow.
Correct flex ensures stable flight.
Incorrect spine causes:
Too stiff
- Arrow impacts left (right-handed shooters)
- Poor grouping
Too weak
- Arrow impacts right
- Excessive fishtailing
Factors That Affect Spine
Draw weight
Heavier bows need stiffer arrows.
Draw length
Longer draws increase required stiffness.
Arrow length
Longer arrows behave weaker.
Point weight
Heavier points weaken effective spine.
Beginner Recommendation
If unsure, contact us before ordering.
We can recommend the correct spine based on your bow setup.
Proper arrow matching dramatically improves traditional shooting performance.
