Brunswick C-(System) 4.5
discontinued item
Unfortunately, we no longer carry this ball. This page is available for informational use. Since this bowling ball is no longer available, find more bowling balls on our balls page or use our bowling ball selector to find a ball to fit your game.
Balls with Same Hook Potential, Lane Conditions
and Coverstock as the Brunswick C-(System) 4.5:
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Product Features & Description
Brunswick C-(System) 4.5
SKU: BRU60105314
Brand: Brunswick Bowling


High Performance
- Coverstock: CFT (Chemical Friction Technology) v4.5
- Color: Black Pearl/Blue Pearl
- Hardness: 75-76
- Factory Finish: 500 Siaair Micro Pad; Rough Buff Finish
- A few tiny pit holes in the cover stock of the ball are normal
- Weight Block: (14-16#) I-Block Symmetric Core
- RG max: 2.608
- RG min: 2.555
- RG diff: 0.053
- Average RG: 5.5 of 10
- Hook Potential: 160 (Scale 10-175)
- Length: 110 (Scale 25-235)
- Typical Breakpoint Shape: 95 Angular (Scale Smooth Arc 10-Angular 100)
- Recommended Lane Condition: Medium-Oily
- Description: PBA Pro Brad Angelo says he's more excited about the C System 4.5 than any other ball in a long time. He's thrown it on 3 PBA oil patterns and found it to be something special! CFT v4.5 Coverstock - CFT v4.5 is the next progression in Chemical Friction Technology. The CFT v4.5 coverstock has a lower friction factor than CFT 3.5 which improves length through the heads and mid-lane without sacrificing the quick response and improved traction on the back-end.
I-Block Symmetric Core - The new I – Block Symmetric core was created by modifying the original asymmetric I – Block core (which has a symmetric base and an asymmetric flip block) to have an asymmetric base. By creating an asymmetric base with an asymmetric flip block on perpendicular axes the two asymmetries cancel each other out making the core shape symmetric. The core shape was also thinned and stretched to increase the RG min while maintaining the overall differential.
Ball Motion - With its Rough Buff finish, the C-(System) v4.5 will offer a lower friction factor with similar response time to friction alternative to the C-(System) 3.5. The new C-(System) v4.5 is best used on medium to oily lane conditions when you need to use a breakpoint further down the lane with a quick response motion to increase pin carry.
Reaction Setup - The C-(System) v4.5 can be drilled using the standard drilling techniques developed for symmetric bowling balls.
Lightweight Engineering - The unique core shape of each Brunswick ball is used for weights from 14 to 16 pounds. This approach to lightweight ball engineering provides bowlers with consistent ball reaction characteristics across this weight range. The same drilling instructions can be used for 12- and 13-pound balls. This is because Brunswick uses a generic core shape with an RG differential that is close enough to the 14-16 pound shape.
Avg. Customer Rating:4.6 stars
(based on 12 reviews) Reviewers described themselves as: League bowler (2)
  • Pros
    • Attractive (1)
    • Flawless surface (1)
    • Great weight (1)
  • Best Uses
    • Local bowling alley (1)
Already own the Brunswick C-(System) 4.5 bowling ball? Write a Review REVIEWED BY 12 CUSTOMERS sort by:
Displaying Reviews 1-10 of 12View All 12 Reviews
Displaying 12 Reviews
[4 of 4 customers found this review helpful]
Excelent Versatility By Body English Necessary from Brentwood, CA
Reviewed on: 9/14/2010 Verified Reviewer Pros:Strong mid-lane reaction, Ability to varry shots, Great pin carry Cons:None that I see so far Best Uses:Medium-heavy oil Bottom Line:Yes, I would recommend this to a friend I bought this ball a few weeks ago as a new product for my scratch league. In practice on a typical house shot I was throwing a big bender with ease, and avergaing low duece. I was concerned that the lane conditions we use in our scratch league would not be condusive to that shot and highs scoring. My league is using the USBC Blue patterns. In our first week my supisions were correct and I could not throw that big bending shot in practice. However, the versatility of this ball allows for multiple entry angles at various speeds. In my first week I threw a 904 series (4 games) and am looking forwards to seeing how this ball will react to the changing oil patterns in up coming weeks. One minor gripe, this ball must be towled off after every shot as it does pick up a lot of oil and other grime which will affect the performance. Strongly recomend for accomplished bowlers. Was this review helpful to you? Yes / No- You may also flag this review.

[2 of 2 customers found this review helpful]
So Clean! By Chad Roberts from Reynoldsburg, Ohio
Reviewed on: 9/21/2010 Verified Reviewer Bottom Line: The C-System 4.5 did exactly what I pictured it would do, which is why I drilled it with a pin up, 5 in. to PAP drilling and the cg at 4 3/4 inches to PAP. I drilled this up to work as a transition ball from the Anaconda when I need a little more down lane reaction. The ball pushes through the heads better than both the Anaconda and the Revolver. It picks up a little later than the Anaconda, but when the lane carries down too much and the Anaconda begins to wiggle, the C-System really makes that continuous flip that I need without having to overwork my throw to make other pieces work. Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 1 customers found this review helpful]
Great backend By None from Santa Clarita CA
Reviewed on: 7/28/2011 Verified Buyer Pros:Attractive Design, Great Weight, Flawless Surface Best Uses:Local Bowling Alley, Tournaments Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I am now 47 and I don't have the arm I once had so this ball was drilled to go long with a big back end and it hits as hard as it did when I was 30. I love it! Thanks Was this review helpful to you? Yes / No- You may also flag this review.

[7 of 8 customers found this review helpful]
This ball rocks By Xanthri from Currently in Bahrain...
Reviewed on: 8/21/2010 Unverified Bottom Line:Yes, I would recommend this to a friend I have purchased several balls recently and tested them all. I can say without a doubt that once you learn the lane and get the release on this one, it crushes the pins. i have used it on varied lane conditions only lanes that are pretty dry give it problems, on medium to heavy oil you can adjust where you start, then go to town. Whenever i hit the pocket, I don't worry about this one....it's a strike. even when i release a little late, as long as it clears the head pin, i can expect a brooklyn. I will say that i have a bit of trouble with spares because if you vary your speed at all this ball reacts to that speed change. Also when i first started throwing it I was bowling around 15.5 - 16 mph...it would hit hard, but not destroy. I finally got comfortable with my release (I had been working on some grip adjustments around the time I got the ball), my speed came up....and so did my scores once I was bowling this ball around 17-17.5....I have noticed my average consistently climbing up as I bowl more with it. When the lanes are a little dryer, i switch to my 3.5 and it seems to be a bit more forgiving than the 4.5. Really more than anything, it is all about staying consistent, and letting the ball do the work for you....and when it crashes the pins....it makes a hell of a crash....don't know what more a bowler could want. Was this review helpful to you? Yes / No- You may also flag this review.

[3 of 4 customers found this review helpful]
This is one to recommend By two finger mike from Hobbs, NM
Reviewed on: 9/14/2010 Unverified Bottom Line:Yes, I would recommend this to a friend I am a 2 finger bowler and I get picked on a lot by my teammates. But when I break this ball out, the picking stops because the strikes start to happen back to back. If the ball gets away from you, all you have to do is change where you stand and then the ball will do the rest. Was this review helpful to you? Yes / No- You may also flag this review.

[10 of 14 customers found this review helpful]
The Best By stacks from Grand Rapids, MI
Reviewed on: 7/26/2010 Verified Reviewer Bottom Line:Yes, I would recommend this to a friend I jus tried the c-system 4.5 for the first time yesterday instantly fell in love with it, hooks ontime the repsponse is perfect. It doesnt get anybetter than this ball... Was this review helpful to you? Yes / No- You may also flag this review.

[2 of 4 customers found this review helpful]
best ball ever i ever had By EL GUAPO from Deming, NM
Reviewed on: 9/30/2010 Unverified Bottom Line:Yes, I would recommend this to a friend received the ball on Monday 20TH of Sept. at 11:00 am. I had the ball drilled by 3:30 pm and ready to bowl Monday Men's league at 7:00 pm. Fist game score 123, said to my self not to hot. The best I had done since starting winter league was 166 avg. Second game 224, this is getting better. Third game 183 with two ten pin opens. This past Monday my scores were as follows, 196, 223 and 233. Best ball ever. Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 3 customers found this review helpful]
A Beyond great ball in the right HANDS!! By Dubbage from Northwest Indiana
Reviewed on: 10/24/2010 Verified Buyer Pros:Great ball Cons:Can't find one, Can't find one now Best Uses:Any house shot Bottom Line:Yes, I would recommend this to a friend Once again great ball Brunswick!!! (Invest heavy in the C-Line Brunswick please u got something cooking there!!!) I love my C 3.5!!! The 4.5 has step up my shot big time!!! I had to adjust to the 4.5 because I just could not sit my C 3.5 down. I tell u now the C 4.5 is my strongest ball in my arsenal!!! I can play the same line in league all 3 games and so long as I don't miss my line this ball WILL HIT EVERYTIME!!! Whew baby this ball is a killer!!! Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 3 customers found this review helpful]
REIGNITED FIRE IN MY HEART FOR BOWLING By THE BIRDMAN from CHICO, CA
Reviewed on: 10/22/2010 Verified Reviewer Pros:EASY ON YOUR BODY, Consistent, A FEELS GOOD REACTION Best Uses:EXPLODING STRIKES, SWEET SPARES Bottom Line:Yes, I would recommend this to a friend IVE HAD THIS BALL FOR 2 WEEKS NOW, I HAVE A 158 AVERAGE AND WITHIN 4 GAMES I THREW A 203 NOT MY FIRST OR HIGHEST GAME OF 225 I BOWLED WHEN I WAS 12YRS BUT I THOUGHT OK COOL. THEN LAST NIGHT IN LEAGUE IT WAS ON BABY! I THREW A 211,258, AND 247. A 716 SERIES WOW. I AM NOW 25 YRS OLD AND RECENTLY RETURNED TO THE SPORT. WHAT HAPPENED LAST NIGHT REJUVENATED MY HEART,SOUL AND LIFE. THE CHEERS AND HIGH FIVES WERE OVERWHELMING, AND THE PRIDE I FELT AND STILL FEEL TODAY ALMOST BRINGS ME TO TEARS. ITS BEEN A LONG HARD ROAD TO GET HERE.I HAVE THIS BALL TO THANK FOR MY EFFORT, FAITH, PATIENCE PAYING OFF. I AM SO THANKFUL!! Was this review helpful to you? Yes / No- You may also flag this review.

Great Ball By Kei H. from Ridgewood, NJ
Reviewed on: 1/21/2011 Verified Reviewer Pros:Exploding Strikes, Easy to use and get used, PERFECT Cons:Nothing Best Uses:House lanes, Tournaments Bottom Line:Yes, I would recommend this to a friend Just hit the pocket, and the pins explode for a stirke. I had it 4 months now and it's the best ball that I have. Was this review helpful to you? Yes / No- You may also flag this review.

What a joke By dman from dallas,texas
Reviewed on: 7/3/2011 Verified Reviewer Pros:I own all of the c-system Best Uses:None, Very expensive spare ball Describe Yourself:League Bowler Bottom Line:No, I would not recommend this to a friend I have alot of turn on my balls/this 4.5 is a joke. I did everything to try to make it work,weight hole,sanded,polished ect. I ended up giving it to a stright ball bowler,he likes it. I own every c-systems ball out, love them except the 4.5. I am a 220 avg bowler. I averaged 178 with this ball. Was this review helpful to you? Yes / No- You may also flag this review.

Good Ball By EL7Epps from Chicago, IL
Reviewed on: 12/24/2010 Unverified Best Uses:Use on medium-oily lanes Bottom Line:Yes, I would recommend this to a friend This ball has a great, strong backend. You are unlikely to regret purchasing this ball. Was this review helpful to you? Yes / No- You may also flag this review.