Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Brunswick Combat Solid
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Roto Grip Transformer
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Track Synthesis
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Hammer Zero Mercy Solid
|
|
|---|---|---|---|---|
| Brand | Brunswick | Roto Grip | Track | Hammer |
| Line | Pro | HP5 | High | High |
| Coverstock | HK22C² - Alpha Premier Solid | VR1 Solid | QR-12 Solid (HK22C) | HK22C² Solid |
| Cover type | Solid reactive | Solid reactive | Solid reactive | Solid reactive |
| Core | Rampart | Morph Wing | I-Core Gen4 | Super Offset |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.502 | 2.500 (16 lb) | 2.480 | 2.524 |
| Diff | 0.051 | 0.050 (16 lb) | 0.053 | 0.053 |
| Int. diff | 0.019 | 0.015 | 0.020 | 0.020 |
| Factory finish | 500, 1500 Siaair Micro Pad | 4000 Grit | 500, 1500 Siaair Micro Pad | 500, 1500 Siaair Micro Pad |
| Lane condition | — | — | Heavy oil | Heavy oil |
| Flare potential | — | High | — | — |
| Reaction | — | — | Strong mid-lane and backend | Xtreme hook |
| Color | Navy / Blue / Slate / Purple | Indigo / Violet / Slate | Royal Blue / Grey / Purple | Black / Purple / White / Red |
| Release date | August 13, 2026 | January 23, 2026 | February 19, 2026 | November 20, 2025 |
| Status | Current | Current | Current | Current |
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