Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
DV8 Grudge
|
Roto Grip Perfect Gem
|
Storm Ion Max
|
Roto Grip Wicked Gremlin
|
|
|---|---|---|---|---|
| Brand | DV8 | Roto Grip | Storm | Roto Grip |
| Line | $$$$ | HP4 | Premier | HP3 |
| Coverstock | Composite Hook Solid | ER1 Solid | NRG Solid | GR1 Solid |
| Cover type | Solid reactive | Solid reactive | Solid reactive | Solid reactive |
| Core | Grudge Low RG Asymmetric | Gem AI | Element Max AI | Rondure MaxD |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.490 | 2.490 (16 lb) | 2.470 | 2.500 (16 lb) |
| Diff | 0.056 | 0.055 (16 lb) | 0.055 | 0.056 (16 lb) |
| Int. diff | 0.014 | 0.017 | 0.014 | 0.011 |
| Factory finish | 500 and 1,000 Siaair Micro Pad | 2000 Grit | 2000 Grit | 2000 Grit |
| Lane condition | Heavy oil | — | — | — |
| Flare potential | — | High | High | High |
| Reaction | — | — | — | — |
| Color | Black / Purple / White | Pink / Rose / Onyx | Neon Pink / Indigo / White | Citrine / Red / Purple |
| Release date | — | October 2, 2026 | September 20, 2024 | August 7, 2026 |
| Status | Retired | Current | Current | Current |
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