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