# Storm Tropical Surge Silver/Purple

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

- Brand: Storm
- Availability: current
- Released/approved: 2026-06-11
- 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 / dry lanes
- Factory finish: Power Edge
- Flare potential: Low
- List price (MSRP): no manufacturer price found
- USBC approved: yes (2025-04-01)

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 15 lb | 2.58 | 0.024 | — | — |
| 14 lb | 2.6 | 0.025 | — | — |
| 13 lb | 2.62 | 0.021 | — | — |
| 12 lb | 2.64 | 0.02 | — | — |
| 11 lb | 2.76 | 0.002 | — | — |
| 10 lb | 2.8 | 0.002 | — | — |

## Description

Our beloved Tropical line has evolved again! The all-new Surge Core, with a boosted differential paired with our dependable Reactor formula will give you the curve you've been craving for. Six exciting colors and fragrances will appeal to just about anybody.