Compare the specs of the Hammer Rebel Yell and Hammer Black Widow Urethane 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 | Rebel Yell | Black Widow Urethane |
| Cover Name | Juiced Pearl | Urethane |
| Cover Type | Reactive Pearl | Urethane Solid |
| Box Finish | 500 / 2000 Abralon / Powerhouse Factory Finish Polish | 360 / 500 / 500 Abralon |
| Color | Steel / Yellow / Blue | Black |
| Core Name | Rebel | Gas Mask |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.48 | 2.50 |
| Total Diff. | 0.044 | 0.058 |
| Int. Diff. | 0.000 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |