Compare the specs of the Roto Grip RST X-1 and Roto Grip Halo 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-1 | Halo |
| Cover Name | MicroTrax Hybrid | MicroTrax-S18 |
| Cover Type | Reactive Hybrid | Reactive Solid |
| Box Finish | 3000 Abralon | 2000 Grit Pad |
| Color | Black / Dark Forest / Forest Pearl | Coal / Fuchsia / Sky Blue |
| Core Name | RST (Roto Star Tour) | Centrum |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.53 | 2.49 |
| Total Diff. | 0.053 | 0.050 |
| Int. Diff. | 0.016 | 0.018 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |