Roto Grip Caliber Bowling Ball Core

The smooth-rolling Caliber™ core utilizes increased energy transfer to create maximum pin action for both rev-dominant and speed-dominant players.

 
Core Type – Symmetric
 

Roto Grip Bowling Balls With the caliber coreClick Here to Return To Roto Grip Cores

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Roto Grip TNT Bowling Ball

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Roto Grip Backpack All Star Edition

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