Roto Grip Perfect Gem vs. Roto Grip Gremlin Tour-X

Compare the specs of the Roto Grip Perfect Gem and Roto Grip Gremlin Tour-X side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.

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Brand	Roto Grip	Roto Grip
Ball Name	Perfect Gem	Gremlin Tour-X
Cover Name	E-R1 Solid Reactive	V-R1 Hybrid Reactive
Cover Type	Reactive Solid	Reactive Hybrid
Box Finish	2000 Abralon	4000 Abralon
Color	Pink / Rose / Onyx	Smoke / Velvet / Ink
Core Name	Gem + AI	Rondure TOUR-X
Core Type	Asymmetrical	Asymmetrical
RG	2.49	2.48
Total Diff.	0.057	0.034
Int. Diff.	0.017	0.011
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

The graph below shows a visual comparison of the selected balls. Click on each colored circle in the graph to see that ball’s name and ratings. Click the circle again or click the ball's name to view that ball’s full review.

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Bowling Ball Comparison Graph