Track Theorem Delta Bowling Ball ITRG89 M Ball Featuring: Houk Design Matrix

Ball Featuring: Houk Design Matrix I

This ball combines the QR-9 Solid coverstock with the Starship core

Ortholite footbed

Top performing balls offering great hook potential on a wide range of conditions

Track Theorem Delta Bowling Ball ITRG89 M Ball Featuring: Houk Design MatrixTrack Theorem Delta Bowling Ball The Track Theorem Delta builds on the legacy of one of Tracks most trusted performers by enhancing the benchmark motion that made the original so successful. It delivers the same strong midlane read and smooth, sweeping shape while adding a sharper response to friction for increased backend motion and continuation. Compared to the original Theorem, the Delta is more responsive downlane without sacrificing