Compare the specs of the Storm Sky Rocket and Storm Crux Pearl 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 | Sky Rocket | Crux Pearl |
| Cover Name | R2S Pearl Reactive | ERG Pearl Reactive |
| Cover Type | Reactive Pearl | Reactive Pearl |
| Box Finish | 1500 Grit Polished | 1500 Grit Polished |
| Color | Sky Blue / Charcoal | Black / White / Copper |
| Core Name | Booster | Catalyst |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.54 | 2.50 |
| Total Diff. | 0.046 | 0.052 |
| Int. Diff. | 0.000 | 0.017 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |