Track
Track Theorem Delta
Track Theorem Delta
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THE BENCHMARK EVOLVES!
The Track Theorem earned its reputation as one of the best rolling balls in Track history by delivering a motion that simply worked across styles, conditions, and skill levels. Now, the Track Theorem Delta builds on that legacy, recreating the trusted Theorem shape with enhanced performance. Designed to stay true to the original’s benchmark performance, the Theorem Delta offers a powerful blend of strong midlane and a sharper response to friction, giving bowlers the best of both worlds. Compared to the original, it delivers added responsiveness downlane while preserving that sweeping ball motion that made the Theorem so reliable. The result is a versatile, go-to option that captures the essence of the original, now with more continuation and backend that Track fans love.
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SPECIFICATIONS
| Performance | Upper Mid |
| Part Number | 60-108645-93X |
| Color | Black / Indigo / Blue |
| Core | MC2 Asym |
| Coverstock | Super Response Hybrid (HK22) |
| Cover Type | Hybrid Reactive |
| Finish | 500, 1000, 1500 Siaair / Factory Compound |
| Weights | |
|
|
Medium to oily |
| Reaction | Skid / Flip |
| Warranty | Two years from purchase date |
| Release Date | August 13, 2026 |
CORE NUMBERS
|
Weight |
RG |
DIFF |
ASY |
| 16 lb | 2.485 | 0.044 | 0.017 |
| 15 lb | 2.473 | 0.046 | 0.017 |
| 14 lb | 2.487 | 0.046 | 0.017 |
| 13 lb | 2.597 | 0.041 | 0.014 |
| 12 lb | 2.593 | 0.041 | 0.014 |
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Specifications
- Coverstock: Hybrid Reactive Resin
- Core: Asymmetric
- Surface Finish: 500, 1000, 1500 Siaair / Factory Compound
- RG: 2.48
- Differential: 0.046
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