Compare the specs of the Roto Grip Idol Pearl and Roto Grip Winner Solid 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 | Idol Pearl | Winner Solid |
| Cover Name | eTrax-P18 | VTC-S18 |
| Cover Type | Reactive Pearl | Reactive Solid |
| Box Finish | 1500 Grit Polished | 3000 Grit Pad |
| Color | Royal / Amethyst | Black / Purple / Green |
| Core Name | Ikon | Altered Hotshot |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.49 | 2.54 |
| Total Diff. | 0.052 | 0.054 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |