Flying Diamonds FDX1 Tri Fin Set (Med-Large)
Flying Diamonds FDX1 Tri Fin Set (Med-Large)
SKU:148012
FDX1 Thruster Fin Set ā 3 Fins
The FDX1 Thruster is Flying Diamonds' balanced tri-fin template ā designed around a neutral geometry that is not overly upright or raked. Rather than optimizing for a single wave type, it's built to serve as the performance baseline for any shortboard or mid-length in your quiver: a consistent, predictable reference point you can trust across different boards and conditions.
Key Features
- Neutral, balanced template ā not overly upright or raked, engineered to work as a quiver-wide performance reference point
- AirFlex construction ā polyurethane foam air core with high-strength fiberglass and epoxy resin shell, delivering the lightest possible weight with optimal rebound under load
- Balanced flex pattern ā lively and responsive through turns, stable and controlled when conditions demand it
- Balances speed, flow, and response ā Flying Diamonds' stated performance priorities for the FDX1
- Available in Medium and Large; compatible with FCS II (Dual Tab 2) and Futures fin systems
AirFlex Construction
AirFlex begins with a precision-shaped polyurethane foam core ā an air-core interior that removes excess weight while maintaining the fin's shape and structure. This core is wrapped in high-strength fiberglass and laminated with epoxy resin, producing a durable outer shell that holds under load.
The result, according to Flying Diamonds, is a balanced, predictable flex pattern with quick response and smooth feedback. The fin feels lively through turns and stable when you need it to hold ā making it effective at both generating and controlling speed as a thruster.
Fin Specifications
| Fin / Size | Height | Base | Rake | Area |
|---|---|---|---|---|
| Center ā Medium | 4.36" | 4.47" | 7.21" | 16.85" |
| Center ā Large | 4.51" | 4.46" | 7.29" | 17.94" |
| Side (Front Tri) ā Medium | 4.56" | 4.46" | 7.13" | 17.88" |
| Side (Front Tri) ā Large | 4.75" | 4.56" | 7.33" | 19.18" |
All measurements as published by Flying Diamonds of California.
Compatibility
Fin Box System
- FCS II (Dual Tab 2) ā Medium (Black Multi-Tone) and Large (Gray Multi-Tone)
- Futures ā Medium and Large; confirm current stock at time of purchase
Board Type
- Shortboards and mid-lengths running a standard three-fin (thruster) configuration
This Fin Set Is Right for You Ifā¦
- You want a single thruster set that performs consistently across multiple boards ā one reliable setup rather than a different fin for every board
- You prefer a neutral, all-around template over a fin shaped for one specific wave type or condition
- You ride FCS II or Futures boxes and want a versatile thruster option from a dedicated fin maker
- You're establishing your quiver's performance baseline ā the FDX1 is explicitly designed for this purpose
Why the FDX1 Thruster
- Neutral geometry covers more conditions than specialist fins built for a narrow performance window
- AirFlex construction prioritizes weight reduction without compromising structural integrity ā a deliberate design decision from Flying Diamonds
- Works across your quiver: the same set delivers a consistent feel whether you're riding your high-performance shortboard or your mid-length
- Available in both FCS II and Futures ā covering the two most common box standards
Available at Hawaiian South Shore
Honolulu's premier surf boutique since 1996. Hawaii's largest Firewire retailer and exclusive Oahu dealer for the sport's most respected brands.
š 320 Ward Avenue #112, Honolulu, HI 96814
š (808) 597-9055
āļø sales@hawaiiansouthshore.com
Share
