Compare the specs of the 900 Global Zen U and 900 Global Harsh 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 | Harsh Reality |
| Cover Name | S35 Urethane+ Solid | Reserve Blend 902 Solid |
| Cover Type | Urethane Solid | Reactive Solid |
| Box Finish | 1000 Abralon | 2000 Abralon |
| Color | Jet Black | Atomic / Graphite / Black |
| Core Name | Meditate LD Symmetric | Disturbance Asymmetric AI |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.56 | 2.48 |
| Total Diff. | 0.027 | 0.054 |
| Int. Diff. | 0.000 | 0.019 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |