Bowling ball cores · Track

Track Bowling Ball Cores

Every Track core in a ball we sell, with its RG, differential and mass bias, on one map

Track puts 7 different cores into the 11 Track balls we have in stock today: 1 symmetric and 6 asymmetric. The newest is the Track I-Core Gen4. The strongest flare comes from the Track Stealth Core (differential 0.056), and the earliest-revving is the Track MC2 Asym Core (RG 2.470). Every core below links to its own page with specs by weight and the balls built on it.

Not sure? Take the Ball FinderUpdated October 16, 2026

  • 7 current cores
  • 1 symmetric, 6 asymmetric
  • 11 balls in stock
  • 33 retired cores

The Track core map

Where Track’s cores sit on RG and differential against every other core we stock. Lower and left revs early with less flare; up and right saves energy and flares more.

DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Brunswick Vintage Light Bulb Low RG Core, RG 2.560, diff 0.032Brunswick Dual Centric Core, RG 2.500, diff 0.047Ebonite Big Time Core, RG 2.500, diff 0.054Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0.045Radical Modified Intel Symmetric Core, RG 2.483, diff 0.032Motiv Affliction V2 Core, RG 2.480, diff 0.055900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour, RG 2.460, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Turbo Core, RG 2.510, diff 0.040Ebonite Centrex Symmetrical Mass Bias, RG 2.460, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion AI Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Symmetric Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.480, diff 0.054SWAG Executioner Asymmetric Core, RG 2.500, diff 0.051Motiv Predator V2 Core, RG 2.470, diff 0.054Storm C3 Centripetal Control Core, RG 2.490, diff 0.029Roto Grip Rondure MaxD Core, RG 2.500, diff 0.058Hammer Vibe Core, RG 2.510, diff 0.042Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.470, diff 0.037Brunswick Rampart Core, RG 2.500, diff 0.051DV8 Collision Core, RG 2.462, diff 0.052Radical Evil Eye Symmetric Core, RG 2.490, diff 0.046Ebonite Iron Fist V2 Core, RG 2.470, diff 0.053Radical No Doubt Symmetric Core, RG 2.480, diff 0.051Storm Surge Core, RG 2.580, diff 0.024Roto Grip Hyped UP Core, RG 2.500, diff 0.042Roto Grip Morph-Wing Core, RG 2.510, diff 0.051Brunswick Fury Core, RG 2.524, diff 0.038Motiv Sigma Core, RG 2.470, diff 0.047Roto Grip Hustle Core, RG 2.530, diff 0.030900 Global Blast AI Core, RG 2.470, diff 0.055900 Global Strobe AI Core, RG 2.510, diff 0.052Radical Guru Core, RG 2.500, diff 0.044DV8 Unholy Core, RG 2.500, diff 0.051Brunswick Infinity Core, RG 2.520, diff 0.051Storm Catalyst Core, RG 2.500, diff 0.052Hammer Gauntlet Core, RG 2.501, diff 0.050Hammer Raw Hammer Core, RG 2.537, diff 0.038Storm Atmos A.I. Core, RG 2.530, diff 0.042Storm Booster Core, RG 2.540, diff 0.046Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.540, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.630, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.490, diff 0.045Radical Vexed Asymmetric Core, RG 2.490, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.550, diff 0.043Storm Torsion AI Core, RG 2.470, diff 0.050Storm Element Max AI Core, RG 2.470, diff 0.055Storm Radius Core, RG 2.610, diff 0.020Roto Grip Rondure Tour X Core, RG 2.480, diff 0.034SWAG Unreal Core, RG 2.510, diff 0.047SWAG Craze Core, RG 2.520, diff 0.030SWAG Serpent Asymmetric Core, RG 2.510, diff 0.048Radical Torpedo Asymmetric Core, RG 2.480, diff 0.054Motiv Overload, RG 2.480, diff 0.050DV8 Duality Core, RG 2.480, diff 0.036Hammer Spheroid Core, RG 2.480, diff 0.048Radical Outer Limits Asymmetric, RG 2.490, diff 0.051Motiv Apex Predator Core, RG 2.520, diff 0.055Brunswick Danger Zone Core, RG 2.501, diff 0.048Storm RAD-TQ Core, RG 2.560, diff 0.051Storm Velocity Core, RG 2.480, diff 0.051Hammer LED Resin Bowling Ball Core, RG 2.586, diff 0.027Epic Spark Core, RG 2.540, diff 0.049Motiv Hadron Dual Density Core, RG 2.500, diff 0.045Brunswick Zone Asymmetric Core, RG 2.470, diff 0.048Ebonite Entity Core, RG 2.510, diff 0.052Roto Grip Rocker AI Core, RG 2.480, diff 0.050Motiv Flux Core, RG 2.570, diff 0.015DV8 Mantra Core, RG 2.490, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST Core + AI, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG APX V1 Core, RG 2.500, diff 0.042SWAG Fusion Core, RG 2.540, diff 0.036SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna AI Core, RG 2.490, diff 0.044Roto Grip Rondure Core, RG 2.490, diff 0.052Columbia 300 Pulse PowerCOR, RG 2.460, diff 0.045Storm Element Tour A.I. Core, RG 2.470, diff 0.035KR Strikeforce KR Launch Core, RG 2.530, diff 0.047900 Global Ellipse Asymmetric A.I. Core, RG 2.480, diff 0.050Motiv Halogen Core, RG 2.550, diff 0.037Storm C3 + AI Core, RG 2.480, diff 0.031Motiv Gear APG, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.520, diff 0.050Hammer High Rev Offset Core, RG 2.489, diff 0.053Hammer Huntsman Tour Core, RG 2.472, diff 0.036Hammer LED Core, RG 2.650, diff 0.015Storm Inverted Fe2 Core, RG 2.570, diff 0.046Storm Capacitor Core, RG 2.570, diff 0.022Storm Velocity A.I. Core, RG 2.470, diff 0.053Storm Atomic Core, RG 2.480, diff 0.053Storm RAD-X Asymmetric, RG 2.480, diff 0.054Storm ID AI Core, RG 2.510, diff 0.055Hammer FAB Asymmetric, RG 2.550, diff 0.051Columbia 300 Shifter Core, RG 2.470, diff 0.050Radical Modified Intel Symmetric, RG 2.480, diff 0.032Columbia 300 Columbia Ricochet Core, RG 2.480, diff 0.054Roto Grip Defense AI Core, RG 2.490, diff 0.053Storm Supercoil Core, RG 2.470, diff 0.053Storm Centripetal HD A.I. Core, RG 2.460, diff 0.056Hammer Modified Infamous Core, RG 2.560, diff 0.049Brunswick Ethos Core, RG 2.480, diff 0.053Hammer Hazmat Core, RG 2.470, diff 0.055Storm Ignition Core, RG 2.490, diff 0.052Roto Grip Momentous A.I. Core, RG 2.480, diff 0.049Brunswick Portal X Core, RG 2.470, diff 0.054Ebonite Emerge Core, RG 2.510, diff 0.053Radical Katana Core, RG 2.500, diff 0.050900 Global Meditate LD Symmetric Core, RG 2.560, diff 0.027Columbia 300 Movement Core, RG 2.510, diff 0.053Track MC2 Asym Core (pictured: Track Theorem Pearl Bowling Ball)1Track I-Core Gen4 (pictured: Track Synthesis Prime Bowling Ball)2Track Stealth Core (pictured: Track Stealth Mode Bowling Ball)3Track Criterion ID Core (pictured: Track Criterion Inverse Bowling Ball)4Track Criterion MD Core (pictured: Track Criterion Bowling Ball)5Track I-CORE 3.0 (pictured: Track Paragon Fire Bowling Ball)6Track Shuttle Core (pictured: Track Kinetic Sapphire Ice Bowling Ball)72.442.482.522.562.602.642.680.0100.0200.0300.0400.0500.060RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓
DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Brunswick Vintage Light Bulb Low RG Core, RG 2.560, diff 0.032Brunswick Dual Centric Core, RG 2.500, diff 0.047Ebonite Big Time Core, RG 2.500, diff 0.054Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0.045Radical Modified Intel Symmetric Core, RG 2.483, diff 0.032Motiv Affliction V2 Core, RG 2.480, diff 0.055900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour, RG 2.460, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Turbo Core, RG 2.510, diff 0.040Ebonite Centrex Symmetrical Mass Bias, RG 2.460, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion AI Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Symmetric Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.480, diff 0.054SWAG Executioner Asymmetric Core, RG 2.500, diff 0.051Motiv Predator V2 Core, RG 2.470, diff 0.054Storm C3 Centripetal Control Core, RG 2.490, diff 0.029Roto Grip Rondure MaxD Core, RG 2.500, diff 0.058Hammer Vibe Core, RG 2.510, diff 0.042Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.470, diff 0.037Brunswick Rampart Core, RG 2.500, diff 0.051DV8 Collision Core, RG 2.462, diff 0.052Radical Evil Eye Symmetric Core, RG 2.490, diff 0.046Ebonite Iron Fist V2 Core, RG 2.470, diff 0.053Radical No Doubt Symmetric Core, RG 2.480, diff 0.051Storm Surge Core, RG 2.580, diff 0.024Roto Grip Hyped UP Core, RG 2.500, diff 0.042Roto Grip Morph-Wing Core, RG 2.510, diff 0.051Brunswick Fury Core, RG 2.524, diff 0.038Motiv Sigma Core, RG 2.470, diff 0.047Roto Grip Hustle Core, RG 2.530, diff 0.030900 Global Blast AI Core, RG 2.470, diff 0.055900 Global Strobe AI Core, RG 2.510, diff 0.052Radical Guru Core, RG 2.500, diff 0.044DV8 Unholy Core, RG 2.500, diff 0.051Brunswick Infinity Core, RG 2.520, diff 0.051Storm Catalyst Core, RG 2.500, diff 0.052Hammer Gauntlet Core, RG 2.501, diff 0.050Hammer Raw Hammer Core, RG 2.537, diff 0.038Storm Atmos A.I. Core, RG 2.530, diff 0.042Storm Booster Core, RG 2.540, diff 0.046Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.540, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.630, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.490, diff 0.045Radical Vexed Asymmetric Core, RG 2.490, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.550, diff 0.043Storm Torsion AI Core, RG 2.470, diff 0.050Storm Element Max AI Core, RG 2.470, diff 0.055Storm Radius Core, RG 2.610, diff 0.020Roto Grip Rondure Tour X Core, RG 2.480, diff 0.034SWAG Unreal Core, RG 2.510, diff 0.047SWAG Craze Core, RG 2.520, diff 0.030SWAG Serpent Asymmetric Core, RG 2.510, diff 0.048Radical Torpedo Asymmetric Core, RG 2.480, diff 0.054Motiv Overload, RG 2.480, diff 0.050DV8 Duality Core, RG 2.480, diff 0.036Hammer Spheroid Core, RG 2.480, diff 0.048Radical Outer Limits Asymmetric, RG 2.490, diff 0.051Motiv Apex Predator Core, RG 2.520, diff 0.055Brunswick Danger Zone Core, RG 2.501, diff 0.048Storm RAD-TQ Core, RG 2.560, diff 0.051Storm Velocity Core, RG 2.480, diff 0.051Hammer LED Resin Bowling Ball Core, RG 2.586, diff 0.027Epic Spark Core, RG 2.540, diff 0.049Motiv Hadron Dual Density Core, RG 2.500, diff 0.045Brunswick Zone Asymmetric Core, RG 2.470, diff 0.048Ebonite Entity Core, RG 2.510, diff 0.052Roto Grip Rocker AI Core, RG 2.480, diff 0.050Motiv Flux Core, RG 2.570, diff 0.015DV8 Mantra Core, RG 2.490, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST Core + AI, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG APX V1 Core, RG 2.500, diff 0.042SWAG Fusion Core, RG 2.540, diff 0.036SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna AI Core, RG 2.490, diff 0.044Roto Grip Rondure Core, RG 2.490, diff 0.052Columbia 300 Pulse PowerCOR, RG 2.460, diff 0.045Storm Element Tour A.I. Core, RG 2.470, diff 0.035KR Strikeforce KR Launch Core, RG 2.530, diff 0.047900 Global Ellipse Asymmetric A.I. Core, RG 2.480, diff 0.050Motiv Halogen Core, RG 2.550, diff 0.037Storm C3 + AI Core, RG 2.480, diff 0.031Motiv Gear APG, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.520, diff 0.050Hammer High Rev Offset Core, RG 2.489, diff 0.053Hammer Huntsman Tour Core, RG 2.472, diff 0.036Hammer LED Core, RG 2.650, diff 0.015Storm Inverted Fe2 Core, RG 2.570, diff 0.046Storm Capacitor Core, RG 2.570, diff 0.022Storm Velocity A.I. Core, RG 2.470, diff 0.053Storm Atomic Core, RG 2.480, diff 0.053Storm RAD-X Asymmetric, RG 2.480, diff 0.054Storm ID AI Core, RG 2.510, diff 0.055Hammer FAB Asymmetric, RG 2.550, diff 0.051Columbia 300 Shifter Core, RG 2.470, diff 0.050Radical Modified Intel Symmetric, RG 2.480, diff 0.032Columbia 300 Columbia Ricochet Core, RG 2.480, diff 0.054Roto Grip Defense AI Core, RG 2.490, diff 0.053Storm Supercoil Core, RG 2.470, diff 0.053Storm Centripetal HD A.I. Core, RG 2.460, diff 0.056Hammer Modified Infamous Core, RG 2.560, diff 0.049Brunswick Ethos Core, RG 2.480, diff 0.053Hammer Hazmat Core, RG 2.470, diff 0.055Storm Ignition Core, RG 2.490, diff 0.052Roto Grip Momentous A.I. Core, RG 2.480, diff 0.049Brunswick Portal X Core, RG 2.470, diff 0.054Ebonite Emerge Core, RG 2.510, diff 0.053Radical Katana Core, RG 2.500, diff 0.050900 Global Meditate LD Symmetric Core, RG 2.560, diff 0.027Columbia 300 Movement Core, RG 2.510, diff 0.053Track MC2 Asym Core (pictured: Track Theorem Pearl Bowling Ball)1Track I-Core Gen4 (pictured: Track Synthesis Prime Bowling Ball)2Track Stealth Core (pictured: Track Stealth Mode Bowling Ball)3Track Criterion ID Core (pictured: Track Criterion Inverse Bowling Ball)4Track Criterion MD Core (pictured: Track Criterion Bowling Ball)5Track I-CORE 3.0 (pictured: Track Paragon Fire Bowling Ball)6Track Shuttle Core (pictured: Track Kinetic Sapphire Ice Bowling Ball)72.462.512.562.610.0140.0220.0300.0380.0460.054RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓
Numbered: Track’s current cores, pictured by a ball that uses each. Grey dots: every other core in a reactive or urethane ball we stock. Up and right means more flare and later rev-up.

Map key: Track’s current cores

  1. 1Track Theorem Pearl Bowling BallTrack MC2 Asym CoreAsymmetricRG 2.470Diff 0.046
  2. 2Track Synthesis Prime Bowling BallTrack I-Core Gen4AsymmetricRG 2.480Diff 0.053
  3. 3Track Stealth Mode Bowling BallTrack Stealth CoreSymmetricRG 2.480Diff 0.056
  4. 4Track Criterion Inverse Bowling BallTrack Criterion ID CoreAsymmetricRG 2.490Diff 0.047
  5. 5Track Criterion Bowling BallTrack Criterion MD CoreAsymmetricRG 2.500Diff 0.052
  6. 6Track Paragon Fire Bowling BallTrack I-CORE 3.0AsymmetricRG 2.480Diff 0.056
  7. 7Track Kinetic Sapphire Ice Bowling BallTrack Shuttle CoreAsymmetricRG 2.490Diff 0.038

Track cores in balls we stock today

  1. Track Theorem Pearl Bowling BallTrack MC2 Asym CoreAsymmetricRG 2.470Diff 0.046Mass bias 0.0173 in stockNewest: Track Theorem Delta
  2. Track Synthesis Prime Bowling BallTrack I-Core Gen4AsymmetricRG 2.480Diff 0.053Mass bias 0.0202 in stockNewest: Track Synthesis Prime
  3. Track Stealth Mode Bowling BallTrack Stealth CoreSymmetricRG 2.480Diff 0.0562 in stockNewest: Track Stealth Mode Hybrid
  4. Track Criterion Inverse Bowling BallTrack Criterion ID CoreAsymmetricRG 2.490Diff 0.047Mass bias 0.0161 in stockNewest: Track Criterion Inverse
  5. Track Criterion Bowling BallTrack Criterion MD CoreAsymmetricRG 2.500Diff 0.052Mass bias 0.0181 in stockNewest: Track Criterion
  6. Track Paragon Fire Bowling BallTrack I-CORE 3.0AsymmetricRG 2.480Diff 0.056Mass bias 0.0151 in stockNewest: Track Paragon Fire
  7. Track Kinetic Sapphire Ice Bowling BallTrack Shuttle CoreAsymmetricRG 2.490Diff 0.038Mass bias 0.0051 in stockNewest: Track Kinetic Sapphire Ice

Specs are the manufacturer’s 15 lb figures. Click a core for its specs by weight, the balls built on it and the nearest cores from other brands.

Retired Track cores

  1. Track Synergy CoreSymmetricRG 2.540Diff 0.047Used in: Track Cypher Pearl, Track Cypher
  2. Track I-CORE 3.0 SlimAsymmetricRG 2.510Diff 0.053Used in: Track Archetype Hybrid, Track Archetype
  3. Track Regulator CoreSymmetricRG 2.490Diff 0.034Used in: Track Sensor Solid, Track Sensor
  4. Track Modified Tri Core SymmetricalSymmetricRG 2.500Diff 0.038Used in: Track Heat
  5. Track Strata CoreAsymmetricRG 2.470Diff 0.050Used in: Track Strata, Track Strata Hybrid
  6. Track Tempo CoreSymmetricRG 2.560Diff 0.038Used in: Track Tempo
  7. Track Dual Torque CoreSymmetricRG 2.580Diff 0.047Used in: Track Hex-Plosion
  8. Track Proof CoreAsymmetricRG 2.510Diff 0.052Used in: Track Proof, Track Proof Pearl, Track Proof Hybrid
  9. Track Robot CoreAsymmetricRG 2.500Diff 0.057Used in: Track 716T Classic, Track 718A Classic
  10. Track Legion 2 Turbo CoreAsymmetricRG 2.460Diff 0.046Used in: Track 912T Classic
  11. Track Modified Legion CoreAsymmetricRG 2.480Diff 0.045Used in: Track 508A Classic, Track 607A Special Edition Classic
  12. Track Helmet CoreAsymmetricRG 2.520Diff 0.053Used in: Track 706A Classic, Track 706T Classic
  13. Track Packman CoreSymmetricRG 2.510Diff 0.057Used in: Track 503T Classic
  14. Track Catback CoreAsymmetricRG 2.520Diff 0.052Used in: Track 715T Classic
  15. Track X-Type CoreAsymmetricRG 2.480Diff 0.054Used in: Track In2ition
  16. Track MC2 CoreSymmetricRG 2.510Diff 0.045Used in: Track Triton Elite, Track Latitude, Track Latitude Pearl
  17. Track Starship CoreAsymmetricRG 2.490Diff 0.051Used in: Track Tactix, Track Tactix Hybrid
  18. Track Precision SD CoreAsymmetricRG 2.490Diff 0.054Used in: Track Precision, Track Precision Solid
  19. Track Alias CoreAsymmetricRG 2.490Diff 0.054Used in: Track Alias
  20. Track Mako CoreAsymmetricRG 2.480Diff 0.053Used in: Track Mako
  21. Track Cyborg CoreAsymmetricRG 2.480Diff 0.043Used in: Track Cyborg, Track Cyborg Pearl
  22. Track Modified Tri-CoreSymmetricRG 2.500Diff 0.038Used in: Track Heat, Track Ultra Heat, Track Heat Lava
  23. Track LT-2 CoreAsymmetricRG 2.500Diff 0.046Used in: Track Legion Solid, Track Legion, Track Logix
  24. Track Symmetric CoreSymmetricRG 2.560Diff 0.029Used in: Track Tundra Blue Fire, Track Tundra Fire, Track 300T
  25. Track DNA CoreSymmetricRG 2.580Diff 0.055Used in: Track Tour X, Track Tour X Solid
  26. Track Edge CoreAsymmetricRG 2.530Diff 0.049Used in: Track 919c
  27. Track I-CoreAsymmetricRG 2.480Diff 0.057Used in: Track LX16, Track MX16, Track Tour SIC
  28. Track Face CoreAsymmetricRG 2.500Diff 0.049Used in: Track MX10, Track HX10, Track LX10
  29. Track Modified Leggo CoreAsymmetricRG 2.480Diff 0.055Used in: Track 916AT Classic, Track 920T Classic, Track 930T
  30. Track Modified Robot 2 CoreAsymmetricRG 2.520Diff 0.052Used in: Track 714C Classic
  31. Track LeggoNo current ball in our catalog
  32. Track LegionNo current ball in our catalog
  33. Track Modified KineticNo current ball in our catalog

Retired means no ball with this core is in stock at BowlersMart today. The core pages stay up because bowlers still search for these balls, and each one points to the closest current cores.

Shop Track bowling balls

Best-selling Track balls right now

Shop all Track bowling balls

Ranked by what BowlersMart customers bought in the last 30 days. Prices and stock are updated nightly.

Track Stealth Mode Hybrid Bowling BallTrack Stealth Mode Hybrid Bowling Ball3$139.95$249.95CloseoutTrack Theorem Pearl Bowling BallTrack Theorem Pearl Bowling Ball13$109.95$129.95MSRP $259.99Track Theorem Delta Bowling BallTrack Theorem Delta Bowling Ball4$174.95$279.95Track Kinetic Sapphire Ice Bowling BallTrack Kinetic Sapphire Ice Bowling Ball4$144.95$249.95Track Synthesis Bowling BallTrack Synthesis Bowling Ball4$164.95$279.95CloseoutTrack Criterion Inverse Bowling BallTrack Criterion Inverse Bowling Ball2$134.95$159.95MSRP $279.95Track Paragon Fire Bowling BallTrack Paragon Fire Bowling Ball$189.95$279.95Track Synthesis Prime Bowling BallTrack Synthesis Prime Bowling Ball$189.95$279.95

Questions bowlers ask

What cores does Track use in its bowling balls?

7 different cores are in the Track balls we stock today: MC2 Asym Core, I-Core Gen4, Stealth Core, Criterion ID Core, Criterion MD Core, I-CORE 3.0, Shuttle Core. 1 are symmetric and 6 asymmetric. Each core’s page lists its RG, differential and mass bias by weight.

Which Track core has the most flare?

The Track Stealth Core, with a differential of 0.056 at 15 lb, the highest of Track’s current cores. Higher differential means more flare potential and a stronger, more angular motion.

Which Track core revs up earliest?

The Track MC2 Asym Core, with an RG of 2.470 at 15 lb, the lowest of Track’s current cores. A low RG core starts revving sooner and reads the midlane earlier.

Are Track cores symmetric or asymmetric?

Both. Of the 7 Track cores in stock, 1 are symmetric (one pin marker, a smooth continuous arc) and 6 are asymmetric (pin and PSA markers, a stronger and more angular backend).

What is Track’s newest core?

The Track I-Core Gen4, first sold here in February 2026. It is asymmetric with an RG of 2.480 and a differential of 0.053 at 15 lb.

Next lesson

Track coverstocksEvery Track cover compound and the balls that use it.Bowling ball coresRG, differential and mass bias explained, and every brand’s library.Bowling balls by RGAll in-stock balls sorted by RG.

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