Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Phobia
|
Storm Phaze II Pearl
|
Radical Evil Eye Pearl
|
Storm Rocket A.I.
|
|
|---|---|---|---|---|
| Brand | Hammer | Storm | Radical | Storm |
| Line | — | Master | Top Shelf | Thunder |
| Coverstock | Semtex Pearl | TX-25 Pearl | HK22C+ Pearl | A1S Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | Phobia | Velocity | Evil Eye Symmetric | Booster AI |
| Core type | Symmetric | Symmetric | Symmetric | Symmetric |
| RG | 2.490 | 2.480 (16 lb) | 2.495 | 2.520 (16 lb) |
| Diff | 0.054 | 0.051 (16 lb) | 0.046 | 0.046 (16 lb) |
| Int. diff | — | — | — | — |
| Factory finish | 500/1000 Abralon® Polished w/ Powerhouse™ Factory Finish Polish | Power Edge | 500, 1000, 1500, Siaair / Factory Compound | Power Edge |
| Lane condition | Medium oil – Heavy oil | — | — | — |
| Flare potential | — | Medium-high | — | Medium-high |
| Reaction | Strong Mid-Lane with Continuous Backend | — | — | — |
| Color | Smoke / Blue / Bronze | Red / Blue / Purple | Smoke / Teal / Magenta | Chrome / Wine |
| Release date | — | November 28, 2025 | August 13, 2026 | May 1, 2026 |
| Status | Retired | Current | Current | Current |
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