Bowling ball core · Storm
Storm Dual Drive Core
Symmetric Storm core
A symmetric core with later rev-up, more length and medium flare, built for medium to heavy oil. Balls with this core are no longer available at BowlersMart.
- Symmetric
- RG 2.570
- Diff 0.050
Specs
RG AT 15 LB
2.570
Later rev-up, more length
92% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.050
Medium flare
62% 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.
| Weight | RG | DifferentialDiff | Mass biasMB |
|---|---|---|---|
| 16 lb | 2.540 | 0.051 | None |
| 15 lbUsed on this page | 2.570 | 0.050 | None |
| 14 lb | 2.590 | 0.049 | None |
| 13 lb | 2.590 | 0.045 | None |
| 12 lb | 2.650 | 0.035 | None |
Source: Storm published specs, as shown on BowlersMart’s original Storm Dual Drive 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.
Looking for a ball like your Storm Dual Drive?
Balls with the Storm Dual Drive Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Storm R3S Pearl Reactive
Medium oil


900 Global RB 92 Solid Reactive
Heavy oil, medium to heavy oil

Motiv Coercion HFS (High Friction Solid) Reactive
Medium oil

Hammer HK22 Cohesion Pearl Reactive
Medium oil

Epic Ignite Solid Red White Black
Epic Fire Solid Reactive
Dry to medium oil
Balls with the Storm Dual Drive Core
None of the 3 balls with the Storm Dual Drive Core are in stock at BowlersMart right now.
Show 3 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| Storm Timeless Bowling Ball | Storm R2S Hybrid Reactive | January 2017 |
| Storm Drive Bowling Ball | Storm R2S Nano Hybrid Reactive | January 2018 |
| Storm Timeless SE Overseas Bowling Ball | Storm R2X Pearl Reactive | August 2019 |
Where the Storm Dual Drive sits
Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
Nearest cores, zoomed in
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
Storm | Symmetric | 2.570 | 0.046 | RG 0.000 · Diff −0.004 |
|
|
Storm | Asymmetric | 2.560 | 0.051 | RG −0.010 · Diff +0.001 |
|
|
Motiv | Symmetric | 2.550 | 0.050 | RG −0.020 · Diff 0.000 |
|
|
900 Global | Asymmetric | 2.590 | 0.050 | RG +0.020 · Diff 0.000 |
|
|
Hammer | Symmetric | 2.545 | 0.047 | RG −0.025 · Diff −0.003 |
|
|
Columbia 300 | Symmetric | 2.554 | 0.043 | RG −0.016 · Diff −0.007 |
Matches use 15 lb RG and differential.
Drilling and tools
Turn on JavaScript to compare with your ball.Balls with the Storm Dual Drive CoreNone of the 3 balls with the Storm Dual Drive Core are in stock at BowlersMart right now.Show 3 balls no longer available at BowlersMartMore bowling balls with the Storm Dual Drive CoreBallCoverFirst seenStorm Timeless Bowling BallStorm R2S Hybrid ReactiveJanuary 2017Storm Drive Bowling BallStorm R2S Nano Hybrid ReactiveJanuary 2018Storm Timeless SE Overseas Bowling BallStorm R2X Pearl ReactiveAugust 2019Where the Storm Dual Drive sitsEach dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.All coresSymmetricAsymmetricStorm onlyAny brand900 GlobalBrunswickColumbia 300DV8EboniteEpicHammerKR StrikeforceMotivRadicalRoto GripSWAGStormTrack+−ResetZoom to this coreStorm 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 0.055Roto 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, di
Questions bowlers ask
What is the RG of the Storm Dual Drive Core?
At 15 lb the Storm Dual Drive Core has an RG of 2.570. It ranges from 2.540 to 2.650 across the listed weights.
What is the 14 lb RG of the Storm Dual Drive Core?
At 14 lb the RG is 2.590.
What is the differential of the Storm Dual Drive Core?
At 15 lb the differential is 0.050. This is a symmetric core, so mass bias is not applicable.
Which bowling balls use the Storm Dual Drive Core?
Storm Timeless Bowling Ball, Storm Drive Bowling Ball, Storm Timeless SE Overseas Bowling Ball. 0 are in stock now.
Can I still buy a ball with the Storm Dual Drive Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Storm Next Factor Bowling Ball, Storm Hy-Road Bowling Ball, 900 Global Portal Bowling Ball, Motiv Primal Ghost Bowling Ball, Hammer Blacklist Bowling Ball, Epic Ignite Solid Red White Black Bowling Ball.
How do the Storm Dual Drive Core specs change by weight?
At 16 lb: RG 2.540, differential 0.051. At 12 lb: RG 2.650, differential 0.035.
How does the Storm Dual Drive 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 Dual Drive core page (2022), as published by the manufacturer.
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.


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