Brunswick Kingpin Rule vs. Brunswick Quantum Bias Pearl

Compare the specs of the Brunswick Kingpin Rule and Brunswick Quantum Bias Pearl side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.

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Brand	Brunswick	Brunswick
Ball Name	Kingpin Rule	Quantum Bias Pearl
Cover Name	ECA-XR	ECA-XR Pearl
Cover Type	Reactive Solid	Reactive Pearl
Box Finish	500 / 2000 SiaAir	500 SiaAir / Crown Factory Compound
Color	Maroon / Orange / White	Ultramarine
Core Name	Kingpin Ultra Low RG	Quantum Mushroom High RG Asymmetric
Core Type	Asymmetrical	Asymmetrical
RG	2.483	2.563
Total Diff.	0.055	0.052
Int. Diff.	0.020	0.013
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

The graph below shows a visual comparison of the selected balls. Hover over each colored circle in the graph to see that ball’s name and ratings. Click a circle to view that ball’s full review.

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Bowling Ball Comparison Graph