Compare the specs of the Roto Grip UFO and Roto Grip Nuclear Cell 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 | UFO | Nuclear Cell |
| Cover Name | MicroTrax-S20 | eTrax-P20 |
| Cover Type | Reactive Solid | Reactive Pearl |
| Box Finish | 2000 Grit Pad | 1500 Grit Polished |
| Color | Deep Purple / Baby Blue / Neon Green | Purple Haze / Burnt Orange / Red Hot |
| Core Name | E.T. (Equalizer Technology) | Nucleus |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.52 | 2.52 |
| Total Diff. | 0.054 | 0.056 |
| Int. Diff. | 0.016 | 0.018 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |