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Track

Track Theorem Delta

Track Theorem Delta

Regular price $169.99
Regular price Sale price $169.99
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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.

 

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 16-12 Pounds
Lane Condition 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