Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Ebonite Spartan
|
Track Synthesis
|
Hammer Reckoning
|
Storm Alpha Crux
|
|
|---|---|---|---|---|
| Brand | Ebonite | Track | Hammer | Storm |
| Line | Pro | High | High | Premier |
| Coverstock | HK22C² - Optimize Solid | QR-12 Solid (HK22C) | HK22C² Solid | GI26 Solid |
| Cover type | Solid reactive | Solid reactive | Solid reactive | Solid reactive |
| Core | Iron Fist V2 | I-Core Gen4 | Vindicator | Catalyst AI |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.473 | 2.480 | 2.474 | 2.480 (16 lb) |
| Diff | 0.053 | 0.053 | 0.053 | 0.052 (16 lb) |
| Int. diff | 0.019 | 0.020 | 0.016 | 0.017 |
| Factory finish | 500, 1500 Siaair Micro Pad | 500, 1500 Siaair Micro Pad | 500, 1000 Siaair Micro Pad | 2000 Grit |
| Lane condition | Heavy oil | Heavy oil | Heavy oil | — |
| Flare potential | — | — | — | High |
| Reaction | Strong overall hook | Strong mid-lane and backend | Extreme hook | — |
| Color | Purple / Blue / Dark Blue | Royal Blue / Grey / Purple | Black / Navy / Orange / Sky | Black / Turquoise / Violet |
| Release date | January 15, 2026 | February 19, 2026 | November 19, 2026 | May 29, 2026 |
| Status | Current | Current | Current | Current |
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