Compare the specs of the Roto Grip Rubicon UC3 and Roto Grip Gem 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 | Roto Grip | Roto Grip |
| Ball Name | Rubicon UC3 | Gem |
| Cover Name | Tour-ethane Pearl | MicroTrax Solid Reactive |
| Cover Type | Urethane Pearl | Reactive Solid |
| Box Finish | 1000 Abralon | 2000 Abralon |
| Color | Platinum Pearl | Citrine / Ruby / Amethyst |
| Core Name | Rondure | Defiant LRG |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.49 | 2.47 |
| Total Diff. | 0.052 | 0.053 |
| Int. Diff. | 0.011 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |