Bowling ball core · 900 Global
900 Global Amplify Core
The core inside the 900 Global Flux line
An asymmetric core with later rev-up, more length and medium flare, built for heavy oil. Balls with this core are no longer available at BowlersMart.
- Asymmetric
- RG 2.550
- Diff 0.048
- MB 0.014

Specs
RG AT 15 LB
2.550
Later rev-up, more length
87% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.048
Medium flare
55% of the reactive and urethane balls we stock have a lower differential.
MASS BIAS AT 15 LB
0.014
Mild asymmetry
18% of the asymmetric reactive and urethane balls we stock have a lower mass bias.
| Weight | RG | DifferentialDiff | Mass biasMB |
|---|---|---|---|
| 15 lbUsed on this page | 2.550 | 0.048 | 0.014 |
Other weights are not in our catalog for this core.
Looking for a ball like your Flux?
Balls with the 900 Global Amplify Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Hammer HK22 Cohesion Pearl Reactive
Medium oil

Motiv Coercion HFS (High Friction Solid) Reactive
Medium oil

Epic Ignite Solid Red White Black
Epic Fire Solid Reactive
Dry to medium oil

Brunswick Urethane Solid 78D
Dry to medium oil

Storm R3S Pearl Reactive
Medium oil

Motiv Leverage MFS Reactive
Dry to medium oil, medium oil
Balls with the 900 Global Amplify Core
None of the 2 balls with the 900 Global Amplify Core are in stock at BowlersMart right now.
Show 2 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| 900 Global Flux Bowling Ball | 900 Global S72R Solid Reactive | July 2019 |
| 900 Global Flux Pearl Bowling Ball | 900 Global S72 Pearl Reactive | June 2020 |
Where the 900 Global Amplify 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 |
|---|---|---|---|---|---|
|
|
Hammer | Symmetric | 2.545 | 0.047 | RG −0.005 · Diff −0.001 |
|
|
Motiv | Symmetric | 2.550 | 0.050 | RG 0.000 · Diff +0.002 |
|
|
Epic | Symmetric | 2.540 | 0.049 | RG −0.010 · Diff +0.001 |
|
|
Storm | Symmetric | 2.540 | 0.046 | RG −0.010 · Diff −0.002 |
|
|
Storm | Asymmetric | 2.560 | 0.051 | RG +0.010 · Diff +0.003 |
|
|
Brunswick | Symmetric | 2.540 | 0.045 | RG −0.010 · Diff −0.003 |
Matches use 15 lb RG and differential.
Drilling and tools
The Amplify Core is a new design that features the same shape as the Ellipticon core found in the Continuum. We have added a flip block to the bottom of the core to increase the differential in a two-piece designed core. This will yield increased torque at the breakpoint. The two-piece design will have a higher Coefficient of restitution resulting in more energy of the balls surface through the pin deck. It was first introduced in the Global product line in July 2019. It was first launched in the 900 Global Flux Bowling Ball
Questions bowlers ask
What is the RG of the 900 Global Amplify Core?
At 15 lb the 900 Global Amplify Core has an RG of 2.550. Other weights are not in our catalog for this core.
What is the differential of the 900 Global Amplify Core?
At 15 lb the differential is 0.048. The mass bias is 0.014.
Which bowling balls use the 900 Global Amplify Core?
900 Global Flux Bowling Ball, 900 Global Flux Pearl Bowling Ball. 0 are in stock now.
Can I still buy a ball with the 900 Global Amplify Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Hammer Blacklist Bowling Ball, Motiv Primal Ghost Bowling Ball, Epic Ignite Solid Red White Black Bowling Ball, Brunswick Crown 78U Bowling Ball, Storm Next Factor Bowling Ball, Motiv Supra Sport Bowling Ball.
How do the 900 Global Amplify Core specs change by weight?
Other weights are not in our catalog for this core.
How does the 900 Global Amplify 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 2026-10-17.


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