Bow Riser: Parts, Materials & Setup Guide

The bow riser is the rigid central section of a bow that you hold while shooting. On a recurve, it connects both flexible limbs and serves as the mounting point for the sight, arrow rest, and plunger button. On a compound bow, the riser performs the same structural role, housing the limb pockets, sight rail, and accessory mounts. Because the archery riser is the foundation every other component builds on, it's generally the part worth investing in most — it will outlast multiple sets of limbs.

Common Riser Materials

An aluminum bow riser is the most widely used option, offering a reliable balance of stiffness, weight, and affordability. Carbon risers are lighter and can dampen vibration more effectively, though they typically come at a higher price. Wood risers are the traditional choice and remain popular for longbows and barebow setups. Regardless of material, a quality recurve riser should be straight — a twisted riser negatively affects limb alignment and accuracy.

Riser Sizing and the ILF System

The most common recurve riser length is 25 inches, though 27- and 29-inch options exist. Riser length combined with limb length determines overall bow length: a 25-inch riser paired with short limbs yields a 66-inch bow; medium limbs produce 68 inches; long limbs produce 70 inches. The ILF (International Limb Fitting) standard allows archers to mix risers and limbs from different manufacturers, making it the dominant system for Olympic-style setups. Most manufacturers rate limb draw weight at a 28-inch draw length.

Key Bow Riser Setup Measurements

• Tiller: The perpendicular distance from the string to each limb's base where it meets the riser. Most target archers use a positive tiller of 0–6 mm, meaning the top gap is slightly larger than the bottom.
• Brace height: The distance from the string to the valley of the grip. Adjust by adding or removing twists from the bowstring until you reach the manufacturer's recommended range.
• Center shot: Arrow alignment relative to the riser's centerline. For right-handed archers, the arrow point should sit just outside (to the left of) the string when viewed from above.

Before shooting a new setup, tighten all tiller bolts and limb-alignment screws with an Allen key — these are installed hand-tight at the factory and are not ready to shoot as delivered.

Related Glossary Terms

The bow riser parts work together with other components of the bow system. Understanding bow core construction and laminate layers helps explain why riser rigidity matters for energy transfer. Arrow flight is also influenced by how well your fletching is configured — see our guide on feather fletching and how arrow feathers affect flight stability for more context.