Compare the specs of the Roto Grip Clone and Roto Grip Idol Cosmos 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 | Clone | Idol Cosmos |
| Cover Name | OptiTrax Solid Reactive | XtremeTrax Pearl Reactive |
| Cover Type | Reactive Solid | Reactive Pearl |
| Box Finish | Reacta Gloss | 4000 Abralon |
| Color | Alien / Deep Mist / Cyber Grape | Stardust Teal |
| Core Name | Cloned ET | Ikon |
| Core Type | Asymmetrical | Symmetrical |
| RG | 2.51 | 2.49 |
| Total Diff. | 0.056 | 0.052 |
| Int. Diff. | 0.016 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |