Bowling ball core · Radical

Radical Katana Core

The core inside the Radical Katana line

An asymmetric core with mid-lane rev-up and medium flare, built for heavy oil. Balls with this core are no longer available at BowlersMart.

  • Asymmetric
  • RG 2.500
  • Diff 0.050
  • MB 0.020
Radical Katana asymmetric core shape inside the ball

Specs

RG AT 15 LB

2.500

Mid-lane rev-up

Revs soonerRevs later

40% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.050

Medium flare

Less flareMore flare

62% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

0.020

Strong asymmetry

MilderStronger

86% 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.
Radical Katana Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
15 lbUsed on this page 2.500 0.050 0.020

Other weights are not in our catalog for this core.

Looking for a ball like your Katana?

Balls with the Radical Katana Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Hammer Spawn Bowling Ball

Hammer Spawn

Hammer HK22 C2 Solid Reactive

Medium to heavy oil

Sale price $194.95 Regular price $279.95In stock
Brunswick Combat Solid Bowling Ball

Brunswick Combat Solid

Brunswick Alpha Premier Solid HK22C2 Reactive

Medium to heavy oil

Sale price $194.95 Regular price $289.95In stock
SWAG Executioner Solid Bowling Ball

SWAG Executioner Solid

SWAG Supreme Solid AP26

Heavy oil, medium to heavy oil

Sale price $184.95 Regular price $289.95In stock
DV8 Heckler Taunt Bowling Ball

DV8 Heckler Taunt

DV8 Maximum Havoc Hybrid Reactive

Medium to heavy oil

Sale price $164.95 Regular price $279.95In stock
Brunswick Danger Zone Bowling Ball

Brunswick Danger Zone

Brunswick HK22 PowerKoil 26 Reactive

Medium to heavy oil

Sale price $119.95 Regular price $199.95In stock
SWAG Black Dragon Hybrid Bowling Ball

SWAG Black Dragon Hybrid

SWAG Scorch Hybrid AP26

Heavy oil, medium to heavy oil

Sale price $159.95 Regular price $259.95In stock

Balls with the Radical Katana Core

None of the 14 balls with the Radical Katana Core are in stock at BowlersMart right now.

Show 14 balls no longer available at BowlersMart
More bowling balls with the Radical Katana Core
Ball Cover First seen
Radical Katana Strike Bowling Ball Radical HK22 HyperKinetic Hybrid Reactive June 2023
Radical Katana Assault Bowling Ball Radical HK-22 Pearl Reactive December 2022
Radical Katana Gengetsuko Overseas Bowling Ball Radical Forged-X Pearl Reactive May 2022
Radical Katana Homura Overseas Bowling Ball Plastic May 2022
Radical Katana Senbonsakura Overseas Bowling Ball Brunswick UR (Ultra Responsive) Pearl Reactive May 2022
Radical Katana Shinuchi Overseas Bowling Ball Brunswick UR (Ultra Responsive) Pearl Reactive May 2022
Radical Katana Shiranui Overseas Bowling Ball Brunswick UR (Ultra Responsive) Pearl Reactive May 2022
Radical Katana Izayoi Overseas Bowling Ball Brunswick UR (Ultra Responsive) Pearl Reactive May 2022
Radical Katana Slash Bowling Ball Radical Forged 2 Hybrid Reactive February 2018
Radical Katana Dragon Bowling Ball Radical Forged-X Solid Reactive June 2018
Radical Katana Bowling Ball Radical Forged Pearl Reactive August 2018
Radical Katana Legend Bowling Ball Radical Forged + Pearl Reactive December 2018
Radical Katana Khan Overseas Bowling Ball Radical Forged + Pearl Reactive May 2020
Radical Katana Yasha Overseas Bowling Ball Plastic May 2020

Where the Radical Katana 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 2.568, diff 0.032Brunswick 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 0.055Storm Element Tour A.I. Core, RG 2.470, diff 0.035900 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 0.048Motiv 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 0.037DV8 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 0.056Brunswick Infinity Core, RG 2.521, diff 0.051Storm Catalyst A.I. Core, RG 2.480, diff 0.053Hammer 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 0.055Storm 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 0.048Motiv 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 0.027Epic 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 0.050Motiv 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 0.055Motiv 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 0.045KR 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 Capacitor Core, RG 2.570, diff 0.022Hammer Gauntlet Core (pictured: Hammer Spawn Bowling Ball)1SWAG Executioner Asymmetric Core (pictured: SWAG Executioner Solid Bowling Ball)2Radical Outer Limits Asymmetric Core (pictured: Radical Outer Limits Black Hole Bowling Ball)3Brunswick Rampart Core (pictured: Brunswick Combat Solid Bowling Ball)4DV8 Unholy Core (pictured: DV8 Heckler Hybrid Bowling Ball)5SWAG Dragon Asymmetric Core (pictured: SWAG Black Dragon Bowling Ball)6Radical Katana Core (pictured: Radical Katana Strike 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 Radical Katana Core
Core Brand Shape RG Diff vs this core
Hammer Spawn Bowling Ball1Hammer Gauntlet CorePictured: Hammer Spawn
 Hammer Asymmetric 2.501 0.050 RG +0.001 · Diff 0.000
SWAG Executioner Solid Bowling Ball2SWAG Executioner Asymmetric CorePictured: SWAG Executioner Solid
 SWAG Asymmetric 2.500 0.051 RG 0.000 · Diff +0.001
Radical Outer Limits Black Hole Bowling Ball3Radical Outer Limits Asymmetric CorePictured: Radical Outer Limits Black Hole
 Radical Asymmetric 2.499 0.051 RG −0.001 · Diff +0.001
Brunswick Combat Solid Bowling Ball4Brunswick Rampart CorePictured: Brunswick Combat Solid
 Brunswick Asymmetric 2.502 0.051 RG +0.002 · Diff +0.001
DV8 Heckler Hybrid Bowling Ball5DV8 Unholy CorePictured: DV8 Heckler Hybrid
 DV8 Asymmetric 2.504 0.051 RG +0.004 · Diff +0.001
SWAG Black Dragon Bowling Ball6SWAG Dragon Asymmetric CorePictured: SWAG Black Dragon
 SWAG Asymmetric 2.490 0.050 RG −0.010 · Diff 0.000

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 Radical Katana CoreNone of the 14 balls with the Radical Katana Core are in stock at BowlersMart right now.Show 14 balls no longer available at BowlersMartMore bowling balls with the Radical Katana CoreBallCoverFirst seenRadical Katana Strike Bowling BallRadical HK22 HyperKinetic Hybrid ReactiveJune 2023Radical Katana Assault Bowling BallRadical HK-22 Pearl ReactiveDecember 2022Radical Katana Gengetsuko Overseas Bowling BallRadical Forged-X Pearl ReactiveMay 2022Radical Katana Homura Overseas Bowling BallPlasticMay 2022Radical Katana Senbonsakura Overseas Bowling BallBrunswick UR (Ultra Responsive) Pearl ReactiveMay 2022Radical Katana Shinuchi Overseas Bowling BallBrunswick UR (Ultra Responsive) Pearl ReactiveMay 2022Radical Katana Shiranui Overseas Bowling BallBrunswick UR (Ultra Responsive) Pearl ReactiveMay 2022Radical Katana Izayoi Overseas Bowling BallBrunswick UR (Ultra Responsive) Pearl ReactiveMay 2022Radical Katana Slash Bowling BallRadical Forged 2 Hybrid ReactiveFebruary 2018Radical Katana Dragon Bowling BallRadical Forged-X Solid ReactiveJune 2018Radical Katana Bowling BallRadical Forged Pearl ReactiveAugust 2018Radical Katana Legend Bowling BallRadical Forged + Pearl ReactiveDecember 2018Radical Katana Khan Overseas Bowling BallRadical Forged + Pearl ReactiveMay 2020Radical Katana Yasha Overseas Bowling BallPlasticMay 2020Where the Radical Katana sitsEach dot is a core in balls we stock. Cores close toge

From Radical’s description

Questions bowlers ask

What is the RG of the Radical Katana Core?

At 15 lb the Radical Katana Core has an RG of 2.500. Other weights are not in our catalog for this core.

What is the differential of the Radical Katana Core?

At 15 lb the differential is 0.050. The mass bias is 0.020.

Which bowling balls use the Radical Katana Core?

Radical Katana Strike Bowling Ball, Radical Katana Assault Bowling Ball, Radical Katana Gengetsuko Overseas Bowling Ball, Radical Katana Homura Overseas Bowling Ball, Radical Katana Senbonsakura Overseas Bowling Ball. 0 are in stock now.

Can I still buy a ball with the Radical Katana Core?

Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Hammer Spawn Bowling Ball, Brunswick Combat Solid Bowling Ball, SWAG Executioner Solid Bowling Ball, DV8 Heckler Taunt Bowling Ball, Brunswick Danger Zone Bowling Ball, SWAG Black Dragon Hybrid Bowling Ball.

How do the Radical Katana Core specs change by weight?

Other weights are not in our catalog for this core.

How does the Radical Katana 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

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