Bowling ball cores are a critical component of the ball that plays a significant role in determining its performance characteristics. The core is located at the center of the ball and is typically made of dense materials such as urethane or resin. Two primary types of cores exist in modern bowling balls, symmetric and asymmetric.

Symmetric cores are shaped like a circle, with the weight evenly distributed around the ball’s center. These cores provide a predictable and consistent motion on the lane and are suitable for bowlers with a straighter or less-hooking style. Symmetric cores come in various shapes such as pancake, elliptical, and round, and drilling finger holes in different positions can adjust their behavior.

Asymmetric cores have an uneven distribution of weight, making them more dynamic and versatile in their motion. The mass is displaced to one side of the ball, making them more responsive to changes in lane conditions and bowler’s release. These types of cores are typically used by bowlers with a more hooking or curving style, as they generate more angularity and hook potential on the lane. Asymmetric cores come in a variety of shapes, including the popular dual-angle layouts, which use two different angles to achieve different ball motions.

Hybrid cores combine both symmetric and asymmetric shapes to create a unique ball motion. These cores are typically used in bowling balls with reactive resin coverstocks, which generate more hook potential and better pin carry.

Bowling ball manufacturers continue to experiment with new core shapes and materials to create innovative designs. The Quantum core from Brunswick features a unique six-sided shape, while the RAD4 core from Storm has a low RG design that can create more torque and energy transfer.

Choosing the right core for a bowling ball depends on a bowler’s individual style, the lane conditions they are bowling on, and their desired ball motion. It is crucial to do thorough research and consult with a knowledgeable pro shop operator to find the right ball for your game. Ultimately, selecting the right core can make a significant difference in a bowler’s performance and help them achieve their goals on the lane.