Roto Grip Idol Cosmos vs. Roto Grip RST X-1

Compare the specs of the Roto Grip Idol Cosmos and Roto Grip RST X-1 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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Roto Grip Idol Cosmos
Roto Grip RST X-1
Ball NameIdol CosmosRST X-1
Cover NameXtremeTrax Pearl ReactiveMicroTrax Hybrid
Cover TypeReactive PearlReactive Hybrid
Box Finish4000 Abralon3000 Abralon
ColorStardust TealBlack / Dark Forest / Forest Pearl
Core NameIkonRST (Roto Star Tour)
Core TypeSymmetricalAsymmetrical
Total Diff.0.0520.053
Int. Diff.0.0000.016



Back End

Total Hook

Ball Tester Ratings

Bowling Ball Comparison Graph

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

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