Starboard FLASH / FLASH+ Prepreg Carbon SUP Fin
Upgrade your rig with the Starboard FLASH / FLASH+ Prepreg Carbon SUP Fin series — two race-grade paddleboard fins built for performance, speed, and tracking. Whether you’re chasing agility or stability, these fins deliver elite carbon tech and race soundness.
Key Features
Made with 3K Prepreg Twill Carbon — ultralight and stiff construction that maximizes performance.
Sharp 0.4 mm trailing edge for clean hydrodynamics, efficient water release, and accelerated glide.
US Track / US Box fin system compatibility — fits most SUP race boards.
Options & Specifications
| Model | Length | Area | Weight | Best For |
|---|---|---|---|---|
| Flash | 181 mm / ~7.1 in | approx. 450.0 cm² / ~69.7 in² | ~128 g | Riders seeking a balance of speed + maneuverability. Boards with moderate width. |
| Flash+ | 204 mm / ~8.0 in | approx. 535.7 cm² / ~83.0 in² | ~147 g | Riders wanting extra stability, especially on wider boards or in rougher conditions. |
Why FLASH / FLASH+ is for You
These carbon fins balance race-level speed with practical stability. If you often paddleboard in flat water, sprint, or technical race setups, the Flash gives nimble performance. If you need more hold and stability (wider boards or rough water), Flash+ is the better pick.
Package / Specs
One Starboard Flash Fin (181 mm) or Flash+ Fin (204 mm) — Prepreg Carbon SUP Fin
Frequently Asked Questions
Which fin length should I choose?
Choose between a Flash (181 mm) for agility and quicker turns.
Choose between a Flash+ (204 mm) for wider boards or when you desire more straight-line tracking and stability.
How heavy are they?
Flash 181 mm weighs about 128 g.
Flash+ 204 mm weighs about 147 g.
Are they compatible with my SUP?
They require a US Box / US Track fin box system. If your board uses that, they’ll mount easily.
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