Roto Grip UFO vs. Roto Grip Nuclear Cell

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.

Click here to add or remove balls from this comparison.

Roto Grip UFO
Roto Grip Nuclear Cell
Ball NameUFONuclear Cell
Cover NameMicroTrax-S20eTrax-P20
Cover TypeReactive SolidReactive Pearl
Box Finish2000 Grit Pad1500 Grit Polished
ColorDeep Purple / Baby Blue / Neon GreenPurple Haze / Burnt Orange / Red Hot
Core NameE.T. (Equalizer Technology)Nucleus
Core TypeAsymmetricalAsymmetrical
Total Diff.0.0540.056
Int. Diff.0.0160.018



Back End

Total Hook

Ball Tester Ratings

Bowling Ball Comparison Graph

The graph below shows a visual comparison of the selected balls. Hover over each colored circle in the graph to see that ball’s name and ratings. Click a circle to view that ball’s full review.

Filter by Date
Filter by Torque
Filter by Back End
Torque Legend:
Back End Legend:

For more information about our bowling ball testing and review process, please click here.