Compare the specs of the Storm Pro-Motion and Storm Pitch Purple 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 | Pro-Motion | Pitch Purple |
| Cover Name | SPEC Solid Reactive | Rev-Controll Solid Urethane |
| Cover Type | Reactive Solid | Urethane Solid |
| Box Finish | 2000 Abralon | 1000 Abralon |
| Color | Steel Blue | Purple Solid |
| Core Name | Piston | Capacitor |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.52 | 2.57 |
| Total Diff. | 0.049 | 0.022 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |