Bowling ball core · Storm
Storm Centripetal Core
The core inside the Storm Marvel Maxx line
A symmetric core with early rev-up and medium flare, built for medium to heavy oil. Balls with this core are no longer available at BowlersMart.
- Symmetric
- RG 2.480
- Diff 0.050

Specs
RG AT 15 LB
2.480
Early rev-up
15% 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 | 2.480 | 0.052 | None |
| 15 lbUsed on this page | 2.480 | 0.050 | None |
| 14 lb | 2.530 | 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 Centripetal 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 Teal 30 Overseas Bowling Ball: RG 2.530, diff 0.049, mass bias Not listed at 15 lb
Looking for a ball like your Marvel Maxx?
Balls with the Storm Centripetal Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Motiv Propulsion MXV Reactive
Medium to heavy oil

900 Global RB 89 Solid Reactive
Medium to heavy oil

Roto Grip Nanostar Pearl Reactive
Medium to heavy oil

Storm TX-25 Pearl Reactive
Medium to heavy oil

Radical HK22C+ Reactive
Medium to heavy oil

HK22C+ Hybrid Reactive
Heavy oil
Balls with the Storm Centripetal Core
None of the 15 balls with the Storm Centripetal Core are in stock at BowlersMart right now.
Show 15 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| Storm Marvel U-NXT Overseas Bowling Ball | Storm Controll XL Urethane Solid | October 2022 |
| Storm Marvel Pearl Bowling Ball | Storm R2X Pearl Reactive | January 2015 |
| Storm Marvel Maxx Attack Overseas Bowling Ball | Storm NRG Hybrid Reactive | August 2019 |
| Storm Marvel Maxx Impact Overseas Bowling Ball | Storm NeX Solid Reactive | July 2020 |
| Storm Teal 30 Overseas Bowling Ball | Storm R2S Pearl Reactive | December 2020 |
| Storm Sword U Overseas Bowling Ball | Storm Controll Urethane Solid | January 2020 |
| Storm Marvel Maxx Strike Overseas Bowling Ball | Storm NRG Smooth Pearl Reactive | January 2020 |
| Storm Marvel Maxx World Overseas Bowling Ball | Storm NRG-2 Pearl Reactive | July 2020 |
| Storm Marvel Maxx Black Overseas Bowling Ball | Storm NRG Pro Solid Reactive | May 2022 |
| Storm Marvel Maxx Tour Bowling Ball | Storm NeX Hybrid Reactive | June 2023 |
| Storm Marvel Maxx Purple Overseas Bowling Ball | Storm NRG Pro Pearl Reactive | June 2023 |
| Storm Marvel Zero Overseas Bowling Ball | Storm NeX Pearl Reactive | November 2022 |
| Storm Marvel Maxx Pink Overseas Bowling Ball | Storm NRG Pearl Reactive | September 2024 |
| Storm Marvel Maxx Space Overseas Bowling Ball | Storm R2S Pearl Reactive | August 2024 |
| Storm Marvel Blast Overseas Bowling Ball | Storm NRG Pro Pearl Reactive | April 2024 |
Where the Storm Centripetal 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.
Same family: Storm Centripetal HD A.I. Core Same family: Storm Centripetal A.I. Core Same family: Storm Centripetal HD Core
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
Roto Grip | Symmetric | 2.480 | 0.050 | Same RG and differential |
|
|
Storm | Symmetric | 2.480 | 0.051 | RG 0.000 · Diff +0.001 |
|
|
900 Global | Asymmetric | 2.480 | 0.050 | Same RG and differential |
|
|
Motiv | Asymmetric | 2.480 | 0.050 | Same RG and differential |
|
|
Radical | Symmetric | 2.485 | 0.051 | RG +0.005 · Diff +0.001 |
|
|
Ebonite | Symmetric | 2.480 | 0.048 | RG 0.000 · Diff −0.002 |
Matches use 15 lb RG and differential.
Drilling and tools
Turn on JavaScript to compare with your ball.Balls with the Storm Centripetal CoreNone of the 15 balls with the Storm Centripetal Core are in stock at BowlersMart right now.Show 15 balls no longer available at BowlersMartMore bowling balls with the Storm Centripetal CoreBallCoverFirst seenStorm Marvel U-NXT Overseas Bowling BallStorm Controll XL Urethane SolidOctober 2022Storm Marvel Pearl Bowling BallStorm R2X Pearl ReactiveJanuary 2015Storm Marvel Maxx Attack Overseas Bowling BallStorm NRG Hybrid ReactiveAugust 2019Storm Marvel Maxx Impact Overseas Bowling BallStorm NeX Solid ReactiveJuly 2020Storm Teal 30 Overseas Bowling BallStorm R2S Pearl ReactiveDecember 2020Storm Sword U Overseas Bowling BallStorm Controll Urethane SolidJanuary 2020Storm Marvel Maxx Strike Overseas Bowling BallStorm NRG Smooth Pearl ReactiveJanuary 2020Storm Marvel Maxx World Overseas Bowling BallStorm NRG-2 Pearl ReactiveJuly 2020Storm Marvel Maxx Black Overseas Bowling BallStorm NRG Pro Solid ReactiveMay 2022Storm Marvel Maxx Tour Bowling BallStorm NeX Hybrid ReactiveJune 2023Storm Marvel Maxx Purple Overseas Bowling BallStorm NRG Pro Pearl ReactiveJune 2023Storm Marvel Zero Overseas Bowling BallStorm NeX Pearl ReactiveNovember 2022Storm Marvel Maxx Pink Overseas Bowling BallStorm NRG Pearl ReactiveSeptember 2024Storm Marvel Maxx Space Overseas Bowling Ball Storm R2S Pearl ReactiveAugust 2024Storm Marvel Blast Overseas Bowling BallStorm NRG Pro Pearl ReactiveApril 2024Where the Storm Centripetal sit
Questions bowlers ask
What is the RG of the Storm Centripetal Core?
At 15 lb the Storm Centripetal Core has an RG of 2.480. It ranges from 2.480 to 2.650 across the listed weights.
What is the 14 lb RG of the Storm Centripetal Core?
At 14 lb the RG is 2.530.
What is the differential of the Storm Centripetal 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 Centripetal Core?
Storm Marvel U-NXT Overseas Bowling Ball, Storm Marvel Pearl Bowling Ball, Storm Marvel Maxx Attack Overseas Bowling Ball, Storm Marvel Maxx Impact Overseas Bowling Ball, Storm Teal 30 Overseas Bowling Ball. 0 are in stock now.
Can I still buy a ball with the Storm Centripetal Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Motiv Evoke Mayhem Bowling Ball, 900 Global Origin EX Bowling Ball, Roto Grip Rockstar Amped Bowling Ball, Storm Phaze 2 Pearl Bowling Ball, Radical No Doubt Solid Bowling Ball, Radical Deep Impact Bowling Ball.
How do the Storm Centripetal Core specs change by weight?
At 16 lb: RG 2.480, differential 0.052. At 12 lb: RG 2.650, differential 0.035.
How does the Storm Centripetal 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 Centripetal 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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