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With the new Critical Theory™, we are expanding the Theory series with its first pearl Insight™ coverstock.

Designed to maximize dry lane traction, this shell will help increase your entry angle and sharpen your break point (CATS testing proved that the Critical Theory created the most entry angle in the entire product line), all in an effort to help you strike more! Its textured 4000-grit surface increases the Ra value, minimizes oil sensitivity, especially at the end of the oil pattern, and maximizes your bowling enjoyment.

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Wrap the new textured pearl Insight cover around the high-torque, asymmetrical Triliptic core and you have some horsepower. Drill your new Critical Theory with your favorite layout, throw it at the dry boards to the outside, and watch it charge back with authority.


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Critical Theory™ Bowling Ball Technical / Specs

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Coverstock Name Insight
Coverstock Style Pearl
Coverstock Type Reactive
Weight Block Trilipticâ„¢
Color Cherry/White/Obsidian
Finish 4000-grit Abralon®
Durometer 73-75 Rex D-scale
Flare Potential 7+ inches/High
Weights 12lbs - 16lbs
Release Date 08/09/11


Weight Radius of
Differential PSA Differential
16 2.49 0.051 0.012
15 2.49 0.058 0.013
14 2.54 0.049 0.011
13 2.57 0.032 0.010
12 2.59 0.029 0.008

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Lane Comparison

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Compare the shot shapes of any two balls in the current Roto Grip lineup by choosing your style, any lane condition and the two balls you want to see go head-to-head.

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Lane Condition

Balls to Compare


299 with Critical Theory
7 pin leads to first career 299 game.
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New Career series with combo of Critical Theory and Frantic
On Monday August 5th used Roto Grip Critical Theory to shoot 278, then used a Storm Frantic to shoot...
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Critical Theory has given me 801, 815, 813, 827, 816
The Critical Theory has been a non stop strike machine the last couple months!
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Honor Scores

300 Game
Scott Smelcer
Parma, Ohio
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300 Game
John Squire
Barrie , Ontario
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300 Game
Leonard Smith
Augusta, Georgia
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In the News

Belmonte Uses Critical Theory To Lead WSOB Chameleon...
Belmonte WSOB
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Duke, Weber Fire Critical Theory, Shatter to Show at Summer Swing
Duke, Weber, Roto Grip
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Hugh Miller Rolls Roto Grip Critical Theory To PBA Senior Win...
Roto Grip Enews - Hugh Miller Win
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Lennie Boersch, PDW Go One, Two at Senior Regional
PBA Senior Regional Results
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