Compare the specs of the Storm Optimus and Storm Zero Gravity 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 | Storm |
| Ball Name | Optimus | Zero Gravity |
| Cover Name | R2X Pearl Reactive | ERG Solid Reactive |
| Cover Type | Reactive Pearl | Reactive Solid |
| Box Finish | 1500 Grit Polished | 4000 Grit Pad |
| Color | Red / White / Blue | Purple / Red |
| Core Name | Tri-Sphere | Shape-Lock LD |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.48 | 2.55 |
| Total Diff. | 0.048 | 0.037 |
| Int. Diff. | 0.000 | 0.010 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |