Compare the specs of the Roto Grip Idol Helios 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.
Click here to add or remove balls from this comparison.
|XtremeTrax Solid Reactive
|1500 Grit Polished
|Purple Solid / Emerald / Teal
|E.T. (Equalizer Technology)
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.
For more information about our bowling ball testing and review process, please click here.