Compare the specs of the Storm Crux and Roto Grip Sinister 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 | Storm | Roto Grip |
| Ball Name | Crux | Sinister |
| Cover Name | ERG Hybrid Reactive | 76H Hybrid Reactive |
| Cover Type | Reactive Hybrid | Reactive Hybrid |
| Box Finish | 3000 Grit Pad | 4000 Grit Pad |
| Color | Purple Pearl / White Pearl / Black | Neon Yellow and White Pearl / Navy Solid |
| Core Name | Catalyst | Cage |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.50 | 2.52 |
| Total Diff. | 0.052 | 0.054 |
| Int. Diff. | 0.017 | 0.015 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |