Track Theorem Delta Bowling Ball ITRG89 M wide 5" wheels for a

wide 5" wheels for a smoother ride

Can be used to restore the factory finish on polished equipment or adjust box finish to provide more

T03 rubber push-off sole

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

Ball Featuring: Houk Design Matrix I

Track Theorem Delta Bowling Ball ITRG89 M wide 5" wheels for aTrack 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