Peak Bow Weight: Draw Force & Arrow Speed Guide

Peak bow weight is the maximum force, measured in pounds, required to pull a bowstring to full draw. It determines how much energy is stored in the bow and directly influences arrow velocity at the shot.

What Affects Peak Bow Weight

Three variables shape a bow's peak draw weight:

• Limb stiffness: The primary driver. Stiffer limbs — whether wood, fiberglass, or carbon fiber — demand more force to reach full draw, producing higher bow weight in pounds.
• Bow length: At the same draw length, a longer bow bends its limbs through a gentler arc and usually feels smoother, while a shorter bow reaches its peak weight more abruptly.
• Riser design: A heavier riser increases overall bow weight and can affect how smoothly the archer draws through the stroke.

How Peak Bow Weight Is Measured

Draw weight is measured in pounds and abbreviated with the # symbol in equipment specs. Industry ratings are anchored to a 28-inch draw length standard — every inch beyond 28 inches adds roughly 2–3 lb, and every inch under subtracts the same.

On a compound bow, peak weight occurs roughly halfway through the draw cycle, not at full draw. After the cams roll over, let-off reduces the load held at full draw to a fraction of the peak figure — commonly 65–80% less. Because of this, a bow scale must be set to peak draw weight mode and drawn through the full cycle to capture the true maximum. Most compound bows are adjustable in 5 lb increments within a stated range, such as 50–60 lb.

On a recurve bow, draw weight is stated at 28 inches and continues to increase beyond that point — the archer holds the full stated poundage at full draw with no let-off. See the guide on bow draw weight fundamentals for a deeper look at how force scales with draw length on both bow types.

Choosing the Right Peak Bow Weight

A bow set too heavy makes a consistent draw difficult, hurting accuracy. One set too light may not transfer enough energy to propel the arrow effectively at distance.

Arrow selection is also tied to peak bow weight — spine charts from arrow manufacturers use peak weight, not holding weight, as the reference value. Arrows that are too light for the bow's output can cause vibrations that stress equipment over time. Understanding the effects of an overly stiff arrow spine shows how peak weight interacts directly with shaft selection.

For archers curious about how stored energy translates into arrow behavior, the concept of how an arrow bends around the riser at the shot connects directly to both draw weight and spine choice. Arrow shaft flex during launch is also governed by the force the bow delivers at the shot.