Compare the specs of the Roto Grip Duo and Roto Grip TNT 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 | Duo | TNT |
| Cover Name | MicroTrax Pearl Reactive | eTrax PLUS Solid |
| Cover Type | Reactive Pearl | Reactive Solid |
| Box Finish | Reacta Gloss | 2000 Abralon |
| Color | Black / Electric Green | Amber / Fire / Blaze Orange |
| Core Name | Mentor | Torpex |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.49 | 2.47 |
| Total Diff. | 0.046 | 0.052 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |