Brunswick Defender Bowling Ball

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  • Brunswick Defender Bowling Ball and Core
  • Brunswick Defender Bowling Ball
  • Brunswick Defender Bowling Ball Core
MSRP: $289.95
— You save $110.00
Frequently bought together:


Brunswick Defender Bowling Ball

  • Color: Navy/Purple/Sky
  • Coverstock: A.C.T. 3.0 Solid
  • Weight Block: Portal X
  • Factory Finish:  500, 2000 Siaair Micro Pad
  • Flare Potential: High
  • Radius of Gyration (RG): 16lbs - 2.489; 15lbs - 2.473; 14lbs - 2.498
  • Differential (Diff): 16lbs - 0.046; 15lbs - 0.054; 14lbs - 0.054
  • Intermediate Differential (Diff): 16lbs - 0.013; 15lbs - 0.015; 14lbs - 0.015
  • Fragrance: N/A

Additional product information:

Defender. It has a Super Hero look, and you’ll feel like one when throwing it. The Defender borrows from recent successful Brunswick releases to ensure confidence and performance. Starting with the core, our engineers took the Prism core shape and added a dense flip block to the bottom. This core configuration moves mass away from the center of the core body, creating a higher RG and more total differential, enhancing down-lane motion. The updated ACT 3.0 Solid cover was designed to strengthen the mid-lane and backend hook. The attractive color combination, Portal X core, ACT cover, and 2000 Siaair finish are the perfect recipe for higher scores.

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Additional Information

Lane Condition:
Factory Finish:
Sanded 2000 Siaair
Core Type:
Solid Reactive
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12 Reviews

  • 5

    Great strong asymmetrical and the first ball out of my bag for every tournament to help read the lanes. What I love about this ball is it doesn't quit on me when I move left, it still always makes the turn. Allow me to continue using this ball well past game 3. HUGE money maker for me. Currently have another sitting NIB at home just in case I need 2.

  • 5
    I Like This Ball on Longer and Heavier Patterns

    The Defender is that rolly-type ball that is great on longer oil patterns and isn’t going to give you that hockey-shape reaction on the backend. I’ve had an opportunity to throw this ball on a typical house shot, as well as several PBA patterns. This ball gets down the lane well, but doesn’t burn up in the front. I like it on patterns where the volume is greater than 27 mLs and longer than 42 feet. This ball worked well on PBA Shark for example and didn’t make me feel as if I was going to lose the pocket given my lower rev rate and slower ball speed.

  • 5
    Defender is Amazing

    The Brunswick Defender Is A New Release From Brunswick A High End Ball That Really Gets The Through The Oil... Definitely First Ball Out Of My Bag For League Or A Tournament... Very Versatile Bowling Ball For Different Types Of Oil Pattern And Volumes. Good For All Types Of Rev Rates Especially For Those With Lower Rev Rates Or Alot Of Speed... Definitely One Of My Favorites Recently Been Throwing It Alot Able To Stay In The Track For Quite A While Then Able To Move To The Left And Play An Inside Line To The Pocket With The Same Drive Through The Pin Deck. The Color Scheme On The Ball Is Very Appealing As Well And Really Looks Great Going Down Lane. This Is Definitely A Great Ball For A Tournament Bowler Especially When Lanes Are Fresh Or Heavily Volumed Patterns. Make Sure To Go Visit Your Local Pro Shop And Order One Today! You Wont Be Disappointed And Brunswick Is Coming Out With Alot Of Great Products Especially This One!

  • 4
    Brunswick Defender

    The new Brunswick Defender is very clean for a solid Aysmmetrical ball. It has more continuation than a normal solid aysm. The defender is best on longer tighter patterns. You can still use the Defender in leagues with some minor surface adjustments. Very good ball from Brunswick.

  • 5
    The Defender

    The Defender is Brunswick new strong asymmetrical solid with great colors I might add. Compared to a prism this ball had a stronger backend. Hits hard. This ball def likes oil.

  • 5

    The Brunswick Defender is a versatile ball which provides a defined continuous motion ideal for controlling reaction. I find that keeping the cover at 1500 yielded the best reaction. I drilled this pin up over ring with the MB 1" from my thumb. It gets thru the fronts smoothly at that surface yielding more of a hard arc in the backend. I think there are other options for the heaviest of oils. I see this excelling on mediums and/or on patterns where control is needed. Only time will tell if it can tame the wet/dry but I think symmetric balls are best suited for that.

  • 4
    Strong Asy

    This is the first Big Ball from Brunswick ,that I have been able to get it to continue through the pins. I left the surface at box 500-2000. Used on THS ball was really strong off the spot with good hitting power, I drilled this up 45x5x40 , which for me is a Benchmark ball. Check it out at your Pro Shop

  • 5
    Ball review

    This is by far the most versatile asymmetric solid ball I’ve thrown in a long time. I put my favorite pin up layout on this and I’m able to play straighter with my angles in front of me and I’m also able to jump left open my angles and send it right. If you are looking for a bigger stronger asym this is the ball for you.

  • 4
    Defending the Backend on Heavy Conditions

    The Defender is a great stronger ball for slicker conditions. It has enough length to be more versatile than the earliest of heavier oil balls but still has plenty of midlane hook. This ball is my step up when balls like the Knockout Black/Blue aren't angular enough and are not strong enough. The Defender also is versatile enough to see play on the house shot and will see some sport shot use as well. This is a stronger Prism Warp with greater versatility. The Defender is a heavier oil ball with some length and recovery on the back part of the lane.

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