Bowling ball core · Storm

Storm Surge Core

The core inside the Storm Tropical Surge line

A symmetric core with later rev-up, more length and low flare, built for dry to medium oil. 12 of the 25 balls with this core are in stock at BowlersMart.

  • Symmetric
  • RG 2.580
  • Diff 0.024
Storm Surge symmetric core shape inside the ball

Specs

RG AT 15 LB

2.580

Later rev-up, more length

Revs soonerRevs later

93% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.024

Low flare

Less flareMore flare

2% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

None

Symmetric core

Symmetric cores have no mass bias marker to place when drilling.

RG How soon the ball revs up.Differential How much the ball can flare.Mass bias How asymmetric the core is.
Storm Surge Core specs by ball weight (reference ball: Storm Tropical Surge)
Weight RG DifferentialDiff Mass biasMB
15 lbUsed on this page 2.580 0.024 None
14 lb 2.600 0.025 None
13 lb 2.620 0.021 None
12 lb 2.640 0.020 None
11 lb 2.760 0.002 None
10 lb 2.800 0.002 None

Source: Storm published specs, as listed on the Tropical Surge product page. 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.

Balls with the Storm Surge Core

12 of the 25 balls with the Storm Surge Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Solid covers

Solid covers grip the lane soonest and suit heavier oil.

Storm Tropical Surge Black Blue Pink Bowling Ball

Storm Tropical Surge Black Blue Pink

Storm Reactor Solid Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock

Hybrid covers

Hybrid covers mix solid grip with pearl length.

Storm Tropical Surge Black Cherry Bowling Ball

Storm Tropical Surge Black Cherry

Storm Reactor Hybrid Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock

Pearl covers

Pearl covers go longer and turn harder at the end, best on medium oil.

Storm Tropical Surge Apple Kiwi Avocado Bowling Ball

Storm Tropical Surge Apple Kiwi Avocado

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock
Storm Tropical Surge Gold Bronze Medallion Bowling Ball

Storm Tropical Surge Gold Bronze Medallion

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock
Storm Tropical Surge Pink Purple Bowling Ball

Storm Tropical Surge Pink Purple

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock
Storm Tropical Surge Teal Blue Bowling Ball

Storm Tropical Surge Teal Blue

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $99.95 Regular price $139.95In stock
Storm Tropical Surge Emerald Charcoal Bowling Ball

Storm Tropical Surge Emerald Charcoal

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $89.95 Regular price $139.95In stock
Storm Tropical Surge Carbon Chrome Bowling Ball

Storm Tropical Surge Carbon Chrome

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $69.95 Regular price $139.95In stock
Storm Tropical Surge Purple Bowling Ball

Storm Tropical Surge Purple

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $79.95 Regular price $159.95In stock
Storm Tropical Surge Purple Gold Bowling Ball

Storm Tropical Surge Purple Gold

Storm Reactor Pearl Reactive

Dry to medium oil

$69.95In stock
Storm Tropical Surge Purple Navy Bowling Ball

Storm Tropical Surge Purple Navy

Storm Reactor Pearl Reactive

Dry to medium oil

See priceIn stock
Storm Tropical Surge 2nd Quality Teal Blue Bowling Ball

Storm Tropical Surge 2nd Quality Teal Blue

Storm Reactor Pearl Reactive

Dry to medium oil

Sale price $59.95 Regular price $99.95In stock
Show 13 balls no longer available at BowlersMart
More bowling balls with the Storm Surge Core
Ball Cover First seen
Storm Tropical Surge Red White Purple Bowling Ball Storm Reactor Pearl Reactive May 2025
Storm Tropical Surge Black Solid Copper Pearl Bowling Ball Storm Reactor Pearl Reactive July 2018
Storm Tropical Surge Violet Charcoal Pearl Bowling Ball Storm Reactor Pearl Reactive July 2018
Storm Tropical Surge Yellow Black Bowling Ball Storm Reactor Pearl Reactive May 2020
Storm Tropical Surge Pink Black Bowling Ball Storm Reactor Pearl Reactive May 2020
Storm Tropical Surge Gold Black Bowling Ball Storm Reactor Pearl Reactive May 2021
Storm Tropical Surge Midnight Pearl Bowling Ball Storm Reactor Pearl Reactive April 2024
Storm Tropical Surge Silver Purple Bowling Ball Storm Reactor Pearl Reactive May 2025
Storm Tropical Surge 2nd Quality Emerald Charcoal Bowling Ball Storm Reactor Pearl Reactive November 2025
Storm Tropical Surge 2nd Pink Purple Bowling Ball Storm Reactor Pearl Reactive November 2025
Storm Tropical Surge 2nd Quality Gold Black Bowling Ball Storm Reactor Pearl Reactive February 2026
Storm Tropical Surge 2nd Quality Black Cherry Bowling Ball Storm Reactor Pearl Reactive February 2026
Storm Tropical Surge 2nd Quality Purple Bowling Ball Storm Reactor Pearl Reactive February 2026

Shop the 12 available balls with this core

Where the Storm Surge 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 Dual Centric Core, RG 2.509, diff 0.047Ebonite Big Time Core, RG 2.508, 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 Core, RG 2.469, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Turbo Core, RG 2.517, diff 0.040Ebonite Centrex Symmetrical Mass Bias Core, RG 2.466, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion A.I. Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.490, diff 0.050SWAG 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 2.478, diff 0.037Brunswick Rampart Core, RG 2.502, diff 0.051DV8 Collision Core, RG 2.462, diff 0.052Track MC2 Asym Core, RG 2.473, diff 0.046Radical Evil Eye Symmetric Core, RG 2.495, diff 0.046Ebonite Iron Fist V2 Core, RG 2.473, diff 0.053Radical No Doubt Symmetric Core, RG 2.485, diff 0.051Roto 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 A.I. Core, RG 2.470, diff 0.055900 Global Strobe A.I. Core, RG 2.510, diff 0.052Radical Guru Core, RG 2.503, diff 0.044Track I-CORE 3.0, RG 2.486, diff 0.056DV8 Unholy Core, RG 2.504, diff 0.051Brunswick Infinity Core, RG 2.521, diff 0.051Storm Catalyst A.I. Core, RG 2.480, diff 0.053Hammer 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 0.046Track Shuttle Core, RG 2.480, diff 0.040Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.544, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.632, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.496, diff 0.045Radical Vexed Asymmetric Core, RG 2.498, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Track Stealth Core, RG 2.482, diff 0.056Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.554, diff 0.043Storm Torsion A.I. Core, RG 2.470, diff 0.050Storm Element Max A.I. Core, RG 2.470, diff 0.055Roto 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 0.052Motiv Overload Core, 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 Core, RG 2.499, 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 0.051Epic Spark Core, RG 2.540, diff 0.049Motiv Hadron Dual Density Core, RG 2.500, diff 0.045Track Criterion ID Core, RG 2.496, diff 0.047Brunswick Zone Asymmetric Core, RG 2.478, diff 0.048Ebonite Entity Core, RG 2.515, diff 0.052Roto Grip Rocker A.I. Core, RG 2.480, diff 0.050DV8 Mantra Core, RG 2.498, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST A.I. Core, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG APX V1 Core, RG 2.500, diff 0.042SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna A.I. Core, RG 2.490, diff 0.044Columbia 300 Pulse PowerCOR Core, RG 2.468, diff 0.045Storm Element Tour A.I. Core, RG 2.470, diff 0.035KR Strikeforce 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 A.I. Core, RG 2.480, diff 0.031Motiv Gear APG Core, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.523, 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 Velocity A.I. Core, RG 2.470, diff 0.053Storm Atomic Core, RG 2.480, diff 0.053Storm RAD-X Asymmetric Core, RG 2.480, diff 0.054Storm ID A.I. Core, RG 2.510, diff 0.055Hammer FAB Asymmetric Core, RG 2.550, diff 0.051Columbia 300 Shifter Core, RG 2.478, diff 0.050Columbia 300 Ricochet Core, RG 2.488, diff 0.054Roto Grip Defense A.I. 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 2.567, diff 0.049Brunswick Ethos Core, RG 2.480, diff 0.053Hammer Hazmat Core, RG 2.470, diff 0.055Roto Grip Momentous A.I. Core, RG 2.480, diff 0.049Track Criterion MD Core, RG 2.500, diff 0.052Storm Ignition Core, RG 2.490, diff 0.052Brunswick Portal X Core, RG 2.473, diff 0.054Ebonite Emerge Core, RG 2.510, diff 0.053Radical Katana Core, RG 2.500, diff 0.050Columbia 300 Movement Core, RG 2.513, diff 0.053Hammer Modified LED Core (pictured: Hammer NU 2.0 Hammer Bowling Ball)1Storm Capacitor Core (pictured: Storm Pitch Black Bowling Ball)2900 Global Meditate LD Symmetric Core (pictured: 900 Global Zen U Bowling Ball)3Brunswick Vintage Light Bulb Low RG Core (pictured: Brunswick Purple Rhino Pro Bowling Ball)4Motiv Flux Core (pictured: Motiv Shadow Tank Bowling Ball)5Storm Radius Core (pictured: Storm Concept Bowling Ball)6Storm Surge Core (pictured: Storm Tropical Surge Pink Purple 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 Surge Core
Core Brand Shape RG Diff vs this core
Hammer NU 2.0 Hammer Bowling Ball1Hammer Modified LED CorePictured: Hammer NU 2.0 Hammer
 Hammer Symmetric 2.586 0.027 RG +0.006 · Diff +0.003
Storm Pitch Black Bowling Ball2Storm Capacitor CorePictured: Storm Pitch Black
 Storm Symmetric 2.570 0.022 RG −0.010 · Diff −0.002
900 Global Zen U Bowling Ball3900 Global Meditate LD Symmetric CorePictured: 900 Global Zen U
 900 Global Symmetric 2.560 0.027 RG −0.020 · Diff +0.003
Brunswick Purple Rhino Pro Bowling Ball4Brunswick Vintage Light Bulb Low RG CorePictured: Brunswick Purple Rhino Pro
 Brunswick Symmetric 2.568 0.032 RG −0.012 · Diff +0.008
Motiv Shadow Tank Bowling Ball5Motiv Flux CorePictured: Motiv Shadow Tank
 Motiv Symmetric 2.570 0.015 RG −0.010 · Diff −0.009
Storm Concept Bowling Ball6Storm Radius CorePictured: Storm Concept
 Storm Symmetric 2.610 0.020 RG +0.030 · Diff −0.004

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

Turn on JavaScript to compare with your ball.Balls with the Storm Surge Core12 of the 25 balls with the Storm Surge Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.Solid coversSolid covers grip the lane soonest and suit heavier oil.

From Storm’s description

Questions bowlers ask

What is the RG of the Storm Surge Core?

At 15 lb the Storm Surge Core has an RG of 2.580. It ranges from 2.580 to 2.800 across the listed weights.

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

At 14 lb the RG is 2.600.

What is the differential of the Storm Surge Core?

At 15 lb the differential is 0.024. This is a symmetric core, so mass bias is not applicable.

Which bowling balls use the Storm Surge Core?

Storm Tropical Surge Apple Kiwi Avocado Bowling Ball, Storm Tropical Surge Gold Bronze Medallion Bowling Ball, Storm Tropical Surge Pink Purple Bowling Ball, Storm Tropical Surge Black Cherry Bowling Ball, Storm Tropical Surge Black Blue Pink Bowling Ball. 12 are in stock now.

How do the Storm Surge Core specs change by weight?

The 16 lb values are not listed. At 12 lb: RG 2.640, differential 0.020.

How does the Storm Surge 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 listed on the Tropical Surge product page, 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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