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Outer shell of the ball
Surface texture on the ball (sanded, polished, etc)
500/1000/2000 Abralon®
Lane Condition
Length and/or amount of oil on the lane
Color of the ball
Weight block inside the ball
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. - 2.53
15 LB. - 2.52
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. - .045
15 LB. - .052
16 LB. - .046
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.

715T Honor Roll

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  • Jonathan Redfield300/868
  • Maeng Viloria269
  • Brian C. Bourque300 / 768
  • Nick Vitiello300-704

715T Product Notes


Track’s 715T is the first “T” (Track-tion) ball released in the 7 series; designed to be a stronger version of the popular 505T. The designers set out to make a more aggressive product by using an all new UMP GEN4T coverstock. This cover has a larger footprint on the lane to help carve through the head oil. The “Catback” core was unchanged and is still a 0.015 intermediate differential, which gives this ball unbelievable striking power. 

Find the 715T in a Pro Shop near you >

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