Compare the specs of the Roto Grip Attention Star and Roto Grip Optimum Idol 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 | Attention Star | Optimum Idol |
| Cover Name | eTrax PLUS Pearl | MicroTrax Solid Reactive |
| Cover Type | Reactive Pearl | Reactive Solid |
| Box Finish | Reacta Gloss | 2000 Abralon |
| Color | Berry / Silver / Iron | Heliotrope Purple |
| Core Name | Momentous AV + AI | Ikon + AI |
| Core Type | Asymmetrical | Symmetrical |
| RG | 2.48 | 2.47 |
| Total Diff. | 0.049 | 0.056 |
| Int. Diff. | 0.017 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |