Bowling ball core · Storm

Storm Catalyst Core

Asymmetric Storm core

An asymmetric core with mid-lane rev-up and high flare, built for medium to heavy oil. 1 of the 6 balls with this core are in stock at BowlersMart.

  • Asymmetric
  • RG 2.500
  • Diff 0.052
  • MB 0.017
Storm Catalyst asymmetric core shape inside the ball

Specs

RG AT 15 LB

2.500

Mid-lane rev-up

Revs soonerRevs later

42% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.052

High flare

Less flareMore flare

72% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

0.017

Medium asymmetry

MilderStronger

49% of the asymmetric reactive and urethane balls we stock have a lower mass bias.

RG How soon the ball revs up.Differential How much the ball can flare.Mass bias How asymmetric the core is.
Storm Catalyst Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
16 lb 2.500 0.051 0.016
15 lbUsed on this page 2.500 0.052 0.017
14 lb 2.540 0.050 0.015
13 lb 2.570 0.032 0.010
12 lb 2.590 0.029 0.008

Source: Storm published specs, as shown on BowlersMart’s original Storm Catalyst core page (2022). RG and differential change with ball weight; use the row for the weight you throw. The highlighted 15 lb row is the one used on this page.

1 ball on this core lists different numbers
  • Storm Alpha Crux Bowling Ball: RG 2.480, diff 0.053, mass bias 0.018 at 15 lb

Balls with the Storm Catalyst Core

1 of the 6 balls with the Storm Catalyst Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Storm Alpha Crux Bowling Ball

Storm Alpha Crux

Storm GI-26 Solid Reactive

Medium to heavy oil

Sale price $209.95 Regular price $249.95In stock
Show 5 balls no longer available at BowlersMart
More bowling balls with the Storm Catalyst Core
Ball Cover First seen
Storm Crux Bowling Ball Storm ERG Hybrid Reactive August 2014
Storm Crux Pearl Bowling Ball Storm ERG Pearl Reactive January 2015
Storm Omega Crux Bowling Ball Storm GI-20 Pearl Reactive January 2020
Storm Triple Crux Overseas Bowling Ball Storm R3S Pearl Reactive January 2015
Storm Epic Crux Overseas Bowling Ball Storm GI-18 Solid Reactive January 2022

Shop the 1 available balls with this core

Where the Storm Catalyst sits

Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.

DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Track I-Core Gen4, RG 2.480, diff 0.053Brunswick 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 0.054Motiv 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 0.037DV8 Collision Core, RG 2.462, diff 0.052Track MC2 Asym Core, RG 2.470, diff 0.046Radical 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 0.044Track I-CORE 3.0, RG 2.480, diff 0.056Brunswick Infinity Core, RG 2.520, diff 0.051Hammer 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 0.046Track Shuttle Core, RG 2.490, diff 0.038Brunswick 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 0.043Track Stealth Core, RG 2.480, diff 0.056Brunswick 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 0.045Track Criterion ID Core, RG 2.490, diff 0.047Brunswick 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 0.053900 Global Meditate LD Symmetric Core, RG 2.560, diff 0.027Columbia 300 Movement Core, RG 2.510, diff 0.053Track Criterion MD Core (pictured: Track Criterion Bowling Ball)1Brunswick Rampart Core (pictured: Brunswick Combat Bowling Ball)2DV8 Unholy Core (pictured: DV8 Heckler Hybrid Bowling Ball)3SWAG Executioner Asymmetric Core (pictured: SWAG Executioner Solid Bowling Ball)4Radical Katana Core (pictured: Radical Katana Strike Bowling Ball)5Hammer Gauntlet Core (pictured: Hammer Spawn Bowling Ball)6Storm Catalyst Core (pictured: Storm Alpha Crux Bowling Ball)EARLY REV-UPMID-LANELATER REV-UPHIGH FLAREMEDIUMLOW FLARE2.442.482.522.562.602.642.680.0100.0200.0300.0400.0500.060RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓

Nearest cores, zoomed in

Hover or tap a dot for that core’s numbers. Click a dot to open its page. Drag to move around when zoomed in. The same RG and differential do not guarantee the same ball motion.

This core 1 Nearest cores Other cores

Nearest cores to the Storm Catalyst Core
Core Brand Shape RG Diff vs this core
Track Criterion Bowling Ball1Track Criterion MD CorePictured: Track Criterion
 Track Asymmetric 2.500 0.052 Same RG and differential
Brunswick Combat Bowling Ball2Brunswick Rampart CorePictured: Brunswick Combat
 Brunswick Asymmetric 2.500 0.051 RG 0.000 · Diff −0.001
DV8 Heckler Hybrid Bowling Ball3DV8 Unholy CorePictured: DV8 Heckler Hybrid
 DV8 Asymmetric 2.500 0.051 RG 0.000 · Diff −0.001
SWAG Executioner Solid Bowling Ball4SWAG Executioner Asymmetric CorePictured: SWAG Executioner Solid
 SWAG Asymmetric 2.500 0.051 RG 0.000 · Diff −0.001
Radical Katana Strike Bowling Ball5Radical Katana CorePictured: Radical Katana Strike
 Radical Asymmetric 2.500 0.050 RG 0.000 · Diff −0.002
Hammer Spawn Bowling Ball6Hammer Gauntlet CorePictured: Hammer Spawn
 Hammer Asymmetric 2.501 0.050 RG +0.001 · Diff −0.002

Matches use 15 lb RG and differential.

Drilling and tools

Storm drill sheetsLayout guides for symmetric and asymmetric ballsDual angle converterTurn a pin to PAP layout into a dual angle layoutStorm layout adapterAdapt a VLS layout for speed, rev rate and axis rotation

In the heart of the ball lies the innovative Catalyst Core. The genius the design is in the cavity which lets the driller remove less mass with most layouts. No more second guesses or shots in the dark. The ease of drilling is self-evident in this design.

From Storm’s description

Questions bowlers ask

What is the RG of the Storm Catalyst Core?

At 15 lb the Storm Catalyst Core has an RG of 2.500. It ranges from 2.500 to 2.590 across the listed weights.

What is the 14 lb RG of the Storm Catalyst Core?

At 14 lb the RG is 2.540.

What is the differential of the Storm Catalyst Core?

At 15 lb the differential is 0.052. The mass bias is 0.017.

Which bowling balls use the Storm Catalyst Core?

Storm Alpha Crux Bowling Ball, Storm Crux Bowling Ball, Storm Crux Pearl Bowling Ball, Storm Omega Crux Bowling Ball, Storm Triple Crux Overseas Bowling Ball. 1 are in stock now.

How do the Storm Catalyst Core specs change by weight?

At 16 lb: RG 2.500, differential 0.051, mass bias 0.016. At 12 lb: RG 2.590, differential 0.029, mass bias 0.008.

How does the Storm Catalyst Core compare with my ball?

Type the ball you throw into the Compare with your ball box on this page. It shows the RG and differential side by side and saves your bag for every core page.

Sources and method

Specs. Storm published specs, as shown on BowlersMart’s original Storm Catalyst core page (2022), as published by the manufacturer.

Baseline. The baseline is 265 in-stock, published reactive and urethane balls. Plastic and polyester covers, 2-piece, 3-piece and pancake cores, missing covers and missing RG or differential values are excluded.

Percentiles. Percentiles are the share of baseline balls with a strictly lower or higher value; ties are not counted.

Nearest cores. Nearest cores are ranked by distance on standardized 15 lb RG and differential, with the same symmetric or asymmetric shape preferred among near ties (distance bands of 0.1).

Mass bias. Mass bias is compared among asymmetric balls with numeric mass bias only.

Updated. Catalog and page updated 2026-10-16.

Next lesson

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