Compare the specs of the Brunswick Fanatic BTU and Brunswick Absolute Nirvana 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 | Brunswick | Brunswick |
| Ball Name | Fanatic BTU | Absolute Nirvana |
| Cover Name | BTU (Better Than Urethane) | ECS Hook |
| Cover Type | Reactive Solid | Reactive Solid |
| Box Finish | 500 / 1500 SiaAir | 500 / 1000 SiaAir |
| Color | Steel | Black / Blue / Grey |
| Core Name | Low Differential I-Block Symmetric | Nirvana Ultra Low RG |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.601 | 2.477 |
| Total Diff. | 0.030 | 0.054 |
| Int. Diff. | 0.000 | 0.013 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |