Track Theorem Delta
Track Theorem Delta bowling ball
Track Theorem Delta MC2 Asym core
Medium-Heavy Oil High Performance

Track Theorem Delta

Video review coming soon

What should I know about the Theorem Delta? •Asymmetric MC2 Asym core for strong flare and an early, continuous midlane read •Super Response Hybrid (HK22) cover at a 500, 1000, 1500 Siaair with Factory Compound finish •Recreates the trusted Theorem shape with a sharper skid/flip backend for medium to oily lanes

Arsenal Position
Heavy Dry
$174.95
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Coverstock
Hybrid Reactive
Core
Asymmetric
RG
2.473
Differential
.046
Weights
12LB, 13LB, 14LB, 15LB, 16LB
Finish
500, 1000, 1500 Siaair / Factory Compound

What the Specs Tell Us

The Track Super Response Hybrid HK22 Reactive coverstock blends midlane read with backend continuation — a balanced approach that works across a range of patterns. With an RG of 2.473 and a .046 differential, this core revs up earlier for a stronger midlane read with moderate flare for a balanced blend of power and predictability. Designed for medium-heavy oil, this ball has the surface and core combination to handle the volume and still make a move to the pocket.

Technical Specifications

Full Specifications
Brand Track
Ball Name Theorem Delta
Coverstock Track Super Response Hybrid HK22 Reactive
Coverstock Type Hybrid Reactive
Core Name Track MC2 Asym Core
Core Type Asymmetric
RG (15 lb) 2.473
Differential .046
Mass Bias .017
Factory Finish 500, 1000, 1500 Siaair / Factory Compound
Lane Condition Medium - Heavy Oil
Available Weights 12LB, 13LB, 14LB, 15LB, 16LB
Color Black, Blue, Indigo
Release Date August 2026
SKU 60-108645

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