Bowling ball core · 900 Global
900 Global Adaptor/C Core
Symmetric 900 Global core
A symmetric core with early rev-up and high flare, built for heavy oil. Balls with this core are no longer available at BowlersMart.
- Symmetric
- RG 2.480
- Diff 0.055
Specs
RG AT 15 LB
2.480
Early rev-up
16% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.055
High flare
88% 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 |
|---|---|---|---|
| 15 lbUsed on this page | 2.480 | 0.055 | None |
Other weights are not in our catalog for this core.
Looking for a ball like your 900 Global Adaptor/C?
Balls with the 900 Global Adaptor/C Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Motiv Aerial Propulsion Pearl Reactive
Heavy oil

Storm A2S Hybrid Reactive
Medium to heavy oil

Track Prime Response HK22c2 Reactive
Medium to heavy oil

Track Super Response Hybrid HK22C Reactive
Medium to heavy oil

Radical Low Friction Pearl Reactive
Dry to medium oil, medium oil

Columbia HK22 Micro Flex Pearl Reactive
Medium to heavy oil
Balls with the 900 Global Adaptor/C Core
None of the 3 balls with the 900 Global Adaptor/C Core are in stock at BowlersMart right now.
Show 3 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| 900 Global Truth Bowling Ball | 900 Global S74 Response Solid Reactive | June 2016 |
| 900 Global Truth Pearl Bowling Ball | 900 Global S74 Response Pearl Reactive | January 2017 |
| 900 Global Absolute Truth Bowling Ball | 900 Global S80R Hybrid Reactive | October 2017 |
Where the 900 Global Adaptor/C 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: 900 Global Adaptor/D Core
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
Motiv | Symmetric | 2.480 | 0.055 | Same RG and differential |
|
|
Columbia 300 | Symmetric | 2.480 | 0.054 | RG 0.000 · Diff −0.001 |
|
|
Track | Symmetric | 2.480 | 0.056 | RG 0.000 · Diff +0.001 |
|
|
Track | Asymmetric | 2.480 | 0.056 | RG 0.000 · Diff +0.001 |
|
|
Storm | Asymmetric | 2.480 | 0.054 | RG 0.000 · Diff −0.001 |
|
|
Radical | Asymmetric | 2.480 | 0.054 | RG 0.000 · Diff −0.001 |
Matches use 15 lb RG and differential.
Drilling and tools
The venerable Adaptor/C Symmetric Core, as always, will provide quick revolutions off of the bowler’s hand. This core has proven to combine the perfect amount of torque and predictability at the breakpoint time and time again.
Questions bowlers ask
What is the RG of the 900 Global Adaptor/C Core?
At 15 lb the 900 Global Adaptor/C Core has an RG of 2.480. Other weights are not in our catalog for this core.
What is the differential of the 900 Global Adaptor/C Core?
At 15 lb the differential is 0.055. This is a symmetric core, so mass bias is not applicable.
Which bowling balls use the 900 Global Adaptor/C Core?
900 Global Truth Bowling Ball, 900 Global Truth Pearl Bowling Ball, 900 Global Absolute Truth Bowling Ball. 0 are in stock now.
Can I still buy a ball with the 900 Global Adaptor/C Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Motiv Raptor Pursuit Bowling Ball, Storm Equinox Hybrid Bowling Ball, Track Paragon Fire Bowling Ball, Track Stealth Mode Hybrid Bowling Ball, Radical Torpedo Direct Hit Bowling Ball, Columbia 300 Ricochet Pearl Bowling Ball.
How do the 900 Global Adaptor/C Core specs change by weight?
Other weights are not in our catalog for this core.
How does the 900 Global Adaptor/C 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 265 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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