Compare the specs of the Roto Grip Hy-Wire and Roto Grip Critical 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 | Hy-Wire | Critical |
| Cover Name | 62M | 67MH Hybrid |
| Cover Type | Reactive Hybrid | Reactive Hybrid |
| Box Finish | 1500 Grit Polished | 3000 Grit Pad |
| Color | Blue Solid / Yellow and Violet Pearl | Purple and Green Pearl / Grey Solid |
| Core Name | Middle Roll 70 | Triliptic |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.50 | 2.49 |
| Total Diff. | 0.043 | 0.058 |
| Int. Diff. | 0.000 | 0.013 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |