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Outer shell of the ball
Intermix Hybrid Technology
Surface texture on the ball (sanded, polished, etc)
500, 1000, 2000, 4000 Abralon®
Lane Condition
Length and/or amount of oil on the lane
Color of the ball
Black Cherry
Weight block inside the ball
Modified Leggo
Core Type
Basic shape type of the core (Symmetric, Asymmetrical, Pancake)
Radius of Gyration: measurement related to weight distribution of the core. This affects how quickly a ball will get in to a roll. A ball with a higher RG will roll later. A ball with lower RG will roll sooner.
14 LB. - 2.58
15 LB. - 2.57
16 LB. - 2.56
Difference between the RG of the core's x-axis and y-axis. Indicates track flare potential and stability. A higher differential means more flare potential and less stabilty. A low differential ball will be more stable and have less flare potential.
14 LB. - .050
15 LB. - .057
16 LB. - .053
Intermediate Differential 
Difference between the RG of the core's x-axis and Z-axis on an asymmetrical core. Indicates the asymmetry of the core. A higher intermediate differential ball will be less stable and will transition more quickly from skid to roll than a ball with lower intermediate differential.

920T Honor Roll

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  • Ivo Fretes300
  • Jonathan Pokorny300
  • Colin Laing269-235-300 (804)
  • Bouden Dieter 300
  • Marek Habart245
  • Bouden Dieter 300

920T Product Notes


Track’s 920T packs plenty of hook for the competitive league bowler. As the lanes transition and become drier, the 920T will still give you the ‘track-tion’ you need to keep striking. We accomplished this goal by combining two strong elements from previous Track products: the popular modified Leggo core, and combining our HP Gen 2 coverstock used in the UpRising with our HP Gen 3 used in the 930T, minus the mica. Our R&D Dept. worked closely with our Manufacturing Team to develop an entirely new pouring system process in order to make this combination - our first truly hybrid Inter-Mix Technology (IMT) cover. 

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