Compare the specs of the Roto Grip Optimum Idol Pearl and Roto Grip TNT Infused 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 Pearl | TNT Infused |
| Cover Name | MicroTrax Pearl Reactive | eTrax Hybrid Reactive |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | Reacta Gloss | Reacta Gloss |
| Color | Bubblegum / Iris | Glow Orange / Copper / Plum |
| Core Name | Ikon + AI | Torpex |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.47 | 2.47 |
| Total Diff. | 0.056 | 0.052 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |