Bowling ball core · Radical
Radical Outer Limits Asymmetric Core
The core inside the Radical Outer Limits line
An asymmetric core with mid-lane rev-up and high flare, built for heavy oil. 1 of the 4 balls with this core are in stock at BowlersMart.
- Asymmetric
- RG 2.499
- Diff 0.051
- MB 0.014

Specs
RG AT 15 LB
2.499
Mid-lane rev-up
40% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.051
High flare
68% 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 |
|---|---|---|---|
| 16 lb | 2.509 | 0.045 | 0.013 |
| 15 lbUsed on this page | 2.499 | 0.051 | 0.014 |
| 14 lb | 2.515 | 0.051 | 0.014 |
| 13 lb | 2.589 | 0.043 | 0.011 |
| 12 lb | 2.612 | 0.043 | 0.011 |
Source: Radical published specs, as listed on the Radical Outer Limits Black Hole product page. 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.
Balls with the Radical Outer Limits Asymmetric Core
1 of the 4 balls with the Radical Outer Limits Asymmetric Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Radical Outer Limits Black Hole
Radical HK22C Solid Reactive
Heavy oil
Show 3 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| Radical Outer Limits Solid Bowling Ball | Radical HK22+ Reactive | January 2025 |
| Radical Outer Limits Pearl Bowling Ball | Radical HK22 HyperKinetic Pearl Reactive | March 2024 |
| Radical Outer Limits Bowling Ball | Radical HK22 HyperKinetic Hybrid Reactive | February 2023 |
Where the Radical Outer Limits Asymmetric 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 |
|---|---|---|---|---|---|
|
|
SWAG | Asymmetric | 2.500 | 0.051 | RG +0.001 · Diff 0.000 |
|
|
Brunswick | Asymmetric | 2.502 | 0.051 | RG +0.003 · Diff 0.000 |
|
|
Hammer | Asymmetric | 2.501 | 0.050 | RG +0.002 · Diff −0.001 |
|
|
DV8 | Asymmetric | 2.504 | 0.051 | RG +0.005 · Diff 0.000 |
|
|
SWAG | Asymmetric | 2.490 | 0.050 | RG −0.009 · Diff −0.001 |
|
|
SWAG | Asymmetric | 2.490 | 0.052 | RG −0.009 · Diff +0.001 |
Matches use 15 lb RG and differential.
Drilling and tools
Turn on JavaScript to compare with your ball.Balls with the Radical Outer Limits Asymmetric Core1 of the 4 balls with the Radical Outer Limits Asymmetric Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.
Questions bowlers ask
What is the RG of the Radical Outer Limits Asymmetric Core?
At 15 lb the Radical Outer Limits Asymmetric Core has an RG of 2.499. It ranges from 2.499 to 2.612 across the listed weights.
What is the 14 lb RG of the Radical Outer Limits Asymmetric Core?
At 14 lb the RG is 2.515.
What is the differential of the Radical Outer Limits Asymmetric Core?
At 15 lb the differential is 0.051. The mass bias is 0.014.
Which bowling balls use the Radical Outer Limits Asymmetric Core?
Radical Outer Limits Black Hole Bowling Ball, Radical Outer Limits Solid Bowling Ball, Radical Outer Limits Pearl Bowling Ball, Radical Outer Limits Bowling Ball. 1 are in stock now.
How do the Radical Outer Limits Asymmetric Core specs change by weight?
At 16 lb: RG 2.509, differential 0.045, mass bias 0.013. At 12 lb: RG 2.612, differential 0.043, mass bias 0.011.
How does the Radical Outer Limits Asymmetric 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. Radical published specs, as listed on the Radical Outer Limits Black Hole product page, 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.


Pay in 4 with Afterpay
Personalized Bowling Bags
Personalized Shammies
Personalized Bowling Jerseys
Shop Hammer Balls
Shop Epic Shoes
Shop Epic Bags