Compare the specs of the Roto Grip RST X-2 and Roto Grip Idol Synergy 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 | RST X-2 | Idol Synergy |
| Cover Name | eTrax PLUS Pearl | eTrax |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | 1500 Grit Polished | 1500 Grit Polished |
| Color | Tanzanite | Amethyst Pearl / Magenta Solid |
| Core Name | RST (Roto Star Tour) | Ikon |
| Core Type | Asymmetrical | Symmetrical |
| RG | 2.53 | 2.49 |
| Total Diff. | 0.053 | 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. | |