Compare the specs of the 900 Global Zen U and 900 Global Altered Reality 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 | 900 Global | 900 Global |
| Ball Name | Zen U | Altered Reality |
| Cover Name | S35 Urethane+ Solid | S84 Response Pearl |
| Cover Type | Urethane Solid | Reactive Pearl |
| Box Finish | 1000 Abralon | 1500 Grit Polished |
| Color | Jet Black | Salmon / Black / Silver |
| Core Name | Meditate LD Symmetric | Disturbance Asymmetric |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.56 | 2.49 |
| Total Diff. | 0.027 | 0.052 |
| Int. Diff. | 0.000 | 0.018 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |