Internal or core torque refers to the mass distribution within the core and the internal lever arms created by the core. Core torque is an assigned value of the ball’s ability to combat rollout, the complete loss of axis tilt. High torque balls are more effective than lower torque balls at delaying rollout. Core torque can also be one indicator of the type of reaction that a bowler can expect at the breakpoint with high torque balls having the propensity to be more “violent” and the lower torque balls tending to display a more even, predictable transition from skid to roll.

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