Compare the specs of the Roto Grip Rubicon UC2 and Roto Grip UFO Alert 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 UC2 | UFO Alert |
| Cover Name | eTrax Pearl | eTrax Hybrid |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | 1500 Grit Polished | 1500 Grit Polished |
| Color | Cosmic Black / Purple Sky | Purple Solid / Emerald / Teal |
| Core Name | Rondure | E.T. (Equalizer Technology) |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.49 | 2.52 |
| Total Diff. | 0.052 | 0.054 |
| Int. Diff. | 0.011 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |