Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Roto Grip Gremlin
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Storm Identity B/C/P
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Hammer Black Widow Mania
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Brunswick Infinity Quest Pearl
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|---|---|---|---|---|
| Brand | Roto Grip | Storm | Hammer | Brunswick |
| Line | HP3 | Premier | Upper Mid | High |
| Coverstock | V-R1 Pearl | REX Pearl | HK22 - Cohesion Pearl | HK22C - EVO Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | Rondure MaxD | ID AI | Gas Mask | Infinity |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.500 (16 lb) | 2.500 (16 lb) | 2.500 | 2.521 |
| Diff | 0.056 (16 lb) | 0.055 (16 lb) | 0.058 | 0.051 |
| Int. diff | 0.008 | 0.009 | 0.016 | 0.010 |
| Factory finish | Power Edge | Power Edge | 500, 1000, 1500 Siaair / Factory Compound | 500, 1000, 1500 Siaair / Crown Factory Compound |
| Lane condition | — | — | Medium oil – Heavy oil | — |
| Flare potential | High | High | — | — |
| Reaction | — | — | Length with aggressive backend | — |
| Color | Plum / Raisen / Tanzanite | Black / Cherry / Purple | Cobalt / Black | Blue / Pink |
| Release date | July 18, 2025 | July 1, 2025 | January 16, 2025 | June 11, 2026 |
| Status | Current | Current | Current | Current |
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