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