Compare the specs of the Roto Grip Haywire and Roto Grip Unhinged 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 | Haywire | Unhinged |
| Cover Name | 80H MicroBite | 60M |
| Cover Type | Reactive Solid | Reactive Pearl |
| Box Finish | 2000 Grit Pad | 1500 Grit Polished |
| Color | Navy / Peach / Sky Blue | Cobalt Blue |
| Core Name | Middle Roll 70 | Late Roll 69 |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.50 | 2.58 |
| Total Diff. | 0.043 | 0.049 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |