# Storm Tropical Surge-Black/Gold

> Bowling ball — data from CarryDown (https://www.carrydown.com/balls/storm-tropical-surge-black-gold/)

- Brand: Storm
- Availability: unknown
- Released/approved: 2021-05-12
- Coverstock: [Reactor Pearl Reactive](https://www.carrydown.com/brands/storm/coverstocks/reactor/) (pearl)
- Core: [Surge Core](https://www.carrydown.com/brands/storm/cores/surge-core/) (symmetric)
- Intended condition: Light-medium oil
- Factory finish: 1500-grit Polished
- Flare potential: Medium
- List price (MSRP): no manufacturer price found
- USBC approved: yes (2021-06-01)
- PBA certified: yes

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 15 lb | 2.57 | 0.009 | — | — |
| 14 lb | 2.57 | 0.013 | — | — |
| 13 lb | 2.63 | 0.009 | — | — |
| 12 lb | 2.65 | 0.011 | — | — |
| 11 lb | 2.65 | 0.011 | — | — |
| 10 lb | 2.65 | 0.011 | — | — |