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