The new core shape revs quicker producing maximum performance and drilling versatility.





Fortify Hybrid Reactive coverstock is Brunswick‰Ûªs hottest creation based off our performance enhancing additive chemistry technology. Fortify Hybrid Reactive combines a new base coverstock with an enhanced additive package that will provide the easiest length with the quickest lateral traction of any coverstock to date.


The new Brute Low RG/Low Differential Symmetrical core features a compact design to provide maximum energy retention. The new core shape revs quicker producing maximum performance and drilling versatility.


With its Royal Shine Finish, the Brute skids effortlessly through the front, revving strong in the mid-lane saving axis rotation for the backend to provide greater entry angle to the pocket for superior pin action. The Brute will provide maximum length with exceptional backend punching out pins on variety of light to medium oil lane patterns.


The Brute can be drilled using the standard drilling techniques developed for symmetric core bowling balls.


At Brunswick, the unique core shape of each individual 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. At 12 and 13 pounds, Brunswick uses a generic core shape with a RG-differential that is close enough to the 14 to 16 pound shape so the same drilling instructions can be used.

Part Number 60-105656

Core Type Brute Low RG/Low Differential Symmetrical

Coverstock Fortify Hybrid Reactive

Colour Navy and Light Blue Pearl Hybrid

Finishing Steps 500 Siaair Micro Pad, Royal Compound, Royal Shine

Weights 12-16 Pounds

RG Max 2.523

RG Min 2.491

RG Differential 0.032

RG Average Centre Heavy (1) 3 Cover Heavy (10)

Hook Potential Low (10) High (250)

Length Early (25) 120 Long (235)

Breakpoint Shape Smooth Arc (10) 120 Angular (150)

Additional information

Weight 6.8 kg
Dimensions 22 × 22 × 24 cm

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