Track Proof
Retired
Cover
Prime Response Solid
Factory finish
500/2000 Siaair
Color
Black / Gray
Core (15 lb)
Proof
DynamiCore
R.G. / Differential / Bias
16 lb2.5060.0520.020
15 lb2.5190.0520.020
14 lb2.5380.0520.020
13 lb2.5890.0430.011
12 lb2.6120.0430.011
From the manufacturer

The Proof is a new upper mid performance release with possibly the strongest core numbers ever in this category and an updated Prime cover that will get Track Bowling fans excited. The Proof is very strong and continuous and surprised our testers because it is usable for a long time and does not seem to want to quit, despite the strong core, cover, and finish combination.

Official site
Read more at www.trackbowling.com
Release date
March 19, 2020
Status
Retired. This ball is no longer produced by the manufacturer, but it may still be available at pro shops and online retailers in limited weights.

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