Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Ebonite Polaris
|
Ebonite Spartan
|
Storm Alpha Crux
|
Hammer Reckoning
|
|
|---|---|---|---|---|
| Brand | Ebonite | Ebonite | Storm | Hammer |
| Line | Pro | Pro | Premier | High |
| Coverstock | GSV-3 Solid | HK22C² - Optimize Solid | GI26 Solid | HK22C² Solid |
| Cover type | Solid reactive | Solid reactive | Solid reactive | Solid reactive |
| Core | Polaris | Iron Fist V2 | Catalyst AI | Vindicator |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.475 | 2.473 | 2.480 (16 lb) | 2.474 |
| Diff | 0.048 | 0.053 | 0.052 (16 lb) | 0.053 |
| Int. diff | 0.018 | 0.019 | 0.017 | 0.016 |
| Factory finish | 500, 1500 Siaair Micro Pad | 500, 1500 Siaair Micro Pad | 2000 Grit | 500, 1000 Siaair Micro Pad |
| Lane condition | Heavy oil | Heavy oil | — | Heavy oil |
| Flare potential | — | — | High | — |
| Reaction | Strong overall hook | Strong overall hook | — | Extreme hook |
| Color | Orange / Sky / Purple | Purple / Blue / Dark Blue | Black / Turquoise / Violet | Black / Navy / Orange / Sky |
| Release date | — | January 15, 2026 | May 29, 2026 | November 19, 2026 |
| Status | Retired | Current | Current | Current |
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