Brunswick Defender vs. Brunswick Knock Out Black and Blue

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