Brunswick Knock Out Black and Blue vs. Brunswick Defender

Compare the specs of the Brunswick Knock Out Black and Blue and Brunswick Defender 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	Knock Out Black and Blue	Defender
Cover Name	Savvy Hook 3.5 Solid	ACT 3.0 Solid
Cover Type	Reactive Solid	Reactive Solid
Box Finish	500 / 2000 SiaAir	500 / 2000 SiaAir
Color	Black / Blue	Navy / Purple / Sky
Core Name	Melee	Portal X
Core Type	Symmetrical	Asymmetrical
RG	2.487	2.473
Total Diff.	0.050	0.054
Int. Diff.	0.000	0.015
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