Bowling ball core · Epic

Epic Spark Core

The core inside the Epic Ignite line

A symmetric core with later rev-up, more length and medium flare, built for dry to medium oil. 5 of the 5 balls with this core are in stock at BowlersMart.

  • Symmetric
  • RG 2.540
  • Diff 0.049
Epic Spark symmetric core shape inside the ball

Specs

RG AT 15 LB

2.540

Later rev-up, more length

Revs soonerRevs later

81% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.049

Medium flare

Less flareMore flare

60% 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.
Epic Spark Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
15 lbUsed on this page 2.540 0.049 None

Other weights are not in our catalog for this core.

Balls with the Epic Spark Core

5 of the 5 balls with the Epic Spark 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.

Epic Ignite Solid Red White Black Bowling Ball

Epic Ignite Solid Red White Black

Epic Fire Solid Reactive

Dry to medium oil

Sale price $79.95 Regular price $129.95In stock
Epic Ignite Solid Ocean Candy Metallic Bowling Ball

Epic Ignite Solid Ocean Candy Metallic

Epic Fire Solid Reactive

Dry to medium oil

Sale price $79.95 Regular price $129.95In stock

Hybrid covers

Hybrid covers mix solid grip with pearl length.

Epic Ignite Hybrid Orange Smoke Bowling Ball

Epic Ignite Hybrid Orange Smoke

Epic Fire Hybrid Reactive

Dry to medium oil

Sale price $79.95 Regular price $129.95In stock

Pearl covers

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

Epic Ignite Emerald Teal Purple Bowling Ball

Epic Ignite Emerald Teal Purple

Epic Fire Pearl Reactive

Dry to medium oil

Sale price $69.95 Regular price $129.95In stock
Epic Ignite Pearl Arctic Rose Bowling Ball

Epic Ignite Pearl Arctic Rose

Epic Fire Pearl Reactive

Dry to medium oil

Sale price $69.95 Regular price $129.95In stock

Shop the 5 available balls with this core

Where the Epic Spark sits

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

Storm Element Tour A.I. Core, RG 2.470, diff 0.035DV8 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 2.568, diff 0.032Brunswick Dual Centric Core, RG 2.509, diff 0.047Ebonite Big Time Core, RG 2.508, diff 0.054Hammer 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 0.051Storm 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 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 0.042Track 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 0.056Columbia 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 0.055Storm 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 0.052Motiv 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 0.051Hammer Modified LED Core, RG 2.586, diff 0.027Motiv 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 0.050Motiv Flux Core, RG 2.570, diff 0.015DV8 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 0.055SWAG 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 0.045900 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 0.036Hammer 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 0.022Hammer Stacked LED Core (pictured: Hammer Blacklist Bowling Ball)1Storm Booster Core (pictured: Storm Rocket AI Bowling Ball)2Motiv Impulse V2 Core (pictured: Motiv Primal Ghost Bowling Ball)3KR Strikeforce Launch Core (pictured: KR Strikeforce Rise Red Black Pearl Bowling Ball)4Brunswick Tiered Hexagon Core (pictured: Brunswick Crown Victory Bowling Ball)5Radical Snapshot Symmetric Core (pictured: Radical Snapshot Bowling Ball)6Epic Spark Core (pictured: Epic Ignite Solid Red White Black 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 Epic Spark Core
Core Brand Shape RG Diff vs this core
Hammer Blacklist Bowling Ball1Hammer Stacked LED CorePictured: Hammer Blacklist
 Hammer Symmetric 2.545 0.047 RG +0.005 · Diff −0.002
Storm Rocket AI Bowling Ball2Storm Booster CorePictured: Storm Rocket AI
 Storm Symmetric 2.540 0.046 RG 0.000 · Diff −0.003
Motiv Primal Ghost Bowling Ball3Motiv Impulse V2 CorePictured: Motiv Primal Ghost
 Motiv Symmetric 2.550 0.050 RG +0.010 · Diff +0.001
KR Strikeforce Rise Red Black Pearl Bowling Ball4KR Strikeforce Launch CorePictured: KR Strikeforce Rise Red Black Pearl
 KR Strikeforce Symmetric 2.530 0.047 RG −0.010 · Diff −0.002
Brunswick Crown Victory Bowling Ball5Brunswick Tiered Hexagon CorePictured: Brunswick Crown Victory
 Brunswick Symmetric 2.540 0.045 RG 0.000 · Diff −0.004
Radical Snapshot Bowling Ball6Radical Snapshot Symmetric CorePictured: Radical Snapshot
 Radical Symmetric 2.523 0.050 RG −0.017 · Diff +0.001

Matches use 15 lb RG and differential.

Drilling and tools

Drilling layoutsLayout guides for symmetric and asymmetric ballsDual angle converterTurn a pin to PAP layout into a dual angle layout

Turn on JavaScript to compare with your ball.Balls with the Epic Spark Core5 of the 5 balls with the Epic Spark 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 Epic’s description

Questions bowlers ask

What is the RG of the Epic Spark Core?

At 15 lb the Epic Spark Core has an RG of 2.540. Other weights are not in our catalog for this core.

What is the differential of the Epic Spark Core?

At 15 lb the differential is 0.049. This is a symmetric core, so mass bias is not applicable.

Which bowling balls use the Epic Spark Core?

Epic Ignite Solid Red White Black Bowling Ball, Epic Ignite Solid Ocean Candy Metallic Bowling Ball, Epic Ignite Emerald Teal Purple Bowling Ball, Epic Ignite Pearl Arctic Rose Bowling Ball, Epic Ignite Hybrid Orange Smoke Bowling Ball. 5 are in stock now.

How do the Epic Spark Core specs change by weight?

Other weights are not in our catalog for this core.

How does the Epic Spark 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. Catalog 15 lb figure.

Baseline. The baseline is 212 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

Compare cores by RGEvery in-stock ball from lowest to highest RGCompare cores by differentialEvery in-stock ball from lowest to highest differentialAll bowling ball coresCore libraries for every brand we carryEpic core libraryEvery Epic core we have specs for