Compare the specs of the Hammer Viral and Hammer Spike 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 | Hammer | Hammer |
| Ball Name | Viral | Spike |
| Cover Name | Violent Flip Reactive | GTR III |
| Cover Type | Reactive Pearl | Reactive Pearl |
| Box Finish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish | 800 Abranet / 1000 / 2000 Abralon / Powerhouse Factory Finish Polish |
| Color | Gun Smoke | Blue / Orange |
| Core Name | Vibe | NA |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.51 | 2.56 |
| Total Diff. | 0.042 | 0.054 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |