Compare the specs of the Storm IQ Tour and Storm Gravity Evolve 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 | IQ Tour | Gravity Evolve |
| Cover Name | R2S Solid Reactive | SPEC Solid Reactive |
| Cover Type | Reactive Solid | Reactive Solid |
| Box Finish | 4000 Abralon | 2000 Abralon |
| Color | Midnight Blue | Gunmetal / Fire / Crimson |
| Core Name | C3 Centripetal Control Core | Shape-Lock HD |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.49 | 2.48 |
| Total Diff. | 0.029 | 0.052 |
| Int. Diff. | 0.000 | 0.020 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |