Bow Limb

The limb is one of the most important parts of the bow. It is the upper and lower part of the bow that curves away from the archer when the bowstring is pulled back. The limb is attached to the riser, which is the middle part of the bow that the archer holds onto when shooting. The limb is usually made of a flexible material, such as fiberglass, carbon fiber, or wood, and is designed to store energy when the bow string is pulled back.

The limb's length, shape, and material are crucial factors that determine the bow's performance. The longer the limb, the more energy it can store, which translates to higher arrow speed. The shape of the limb also affects how much energy it can store. Recurve limbs, for example, have a curved shape that allows them to store more energy than straight limbs. The material of the limb also plays a critical role in the bow's performance. Modern materials like carbon fiber can store more energy than traditional materials like wood.

Function of the Bow Limb

The limb's primary function is to store and release energy when the bow string is pulled back and released. When the archer pulls back the bowstring, the limbs of the bow bend, storing potential energy. As the bowstring is released, the limbs straighten out, converting the potential energy into kinetic energy, propelling the arrow forward. The amount of energy stored in the limbs determines how fast the arrow will travel.

Types of Bow Limbs

There are several types of limbs available for archery bows, each with its unique characteristics and advantages.

One-piece Limbs

One-piece limbs are made of a single piece of material, usually wood or fiberglass, and are permanently attached to the riser. They are less expensive than other types of limbs and are relatively simple in design. One-piece limbs are not adjustable, so the archer needs to choose the correct draw weight for their needs.

Takedown Limbs

Takedown limbs are designed to be detachable from the riser, making them easy to transport and store. They are usually made of wood or carbon fiber and are available in a wide range of draw weights. Takedown limbs can be changed out to adjust the draw weight of the bow, making them a versatile option for archers.

Recurve Limbs

Recurve limbs have a curved shape, which allows them to store more energy than straight limbs. They are commonly used in Olympic-style archery and are available in one-piece or takedown designs. Recurve limbs are also more forgiving than other types of limbs, meaning they can accommodate slight variations in the archer's form.

Compound Limbs

Compound limbs are designed with a series of pulleys and cables, which provide a mechanical advantage when drawing the bowstring. They are typically made of fiberglass or carbon fiber and are available in a wide range of draw weights. Compound limbs allow for a smoother draw cycle and higher arrow speeds than traditional recurve limbs. Compound bows are also easier to hold at full draw, making them a popular choice for hunting.