Roto Grip UFO Alert vs. Roto Grip UFO

Compare the specs of the Roto Grip UFO Alert and Roto Grip UFO 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 Alert
Roto Grip UFO
Brand
Ball NameUFO AlertUFO
Cover NameeTrax HybridMicroTrax-S20
Cover TypeReactive HybridReactive Solid
Box Finish1500 Grit Polished2000 Grit Pad
ColorPurple Solid / Emerald / TealDeep Purple / Baby Blue / Neon Green
Core NameE.T. (Equalizer Technology)E.T. (Equalizer Technology)
Core TypeAsymmetricalAsymmetrical
RG2.522.52
Total Diff.0.0540.054
Int. Diff.0.0160.016

Torque

Length

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.