2026 Naish Force 4 Windsurfing Sail – Black/Red
Price range: £709.00 through £859.00
Part exchange welcome- Please call 023 9258 2614
Built to charge. Tuned to trust. It’s your one-sail solution for real wave conditions. The Force 4 gives you control when the waves don’t. Confident, quick, and featherlight between your hands – it reacts fast and stays balanced. A tool that adapts to the ocean and the moment. Power when you need it. Neutral when you don’t. X-Ply construction for longevity.
A refined head shape for tighter control and improved stability. Upgraded batten system for better tension and locked-in shape. The open leech keeps it manageable at speed, while the new batten tensioner makes tuning simple and bombproof. Light. Tough. Rock solid under load. Side onshore, side shore, or side offshore… This sail adapts. Carve lines. Launch aerials. Hack and punt.
The Force 4 delivers smooth handling and instant response. It’s clean. It’s light. It’s reliable. Handles gusts. Forgives mistakes. Built for power, tuned for flow. Go harder with confidence in every turn.
Description
Versatile Wave Performance
Excels in all wave conditions, the 4 Batten Moderate-to-Low Aspect Ratio Platform optimizes control and maneuverability in dynamic surf.
Extended Wind Range
Improves top-end power and control, a Light Feeling Between Hands with an Excellent Wind Range ensures responsiveness in all conditions.
Lightweight & Durable Build
Maximizes maneuverability and strength the XS-1577 Ultra Lightweight Scrim Construction reduces weight while maintaining peak performance.
Enhanced Stability and Performance
Provides a locked-in ride, the 3D Shaping Technology with Carbon Air Frame delivers a lightweight yet rigid structure.
Superior Stiffness & Durability
Enhances longevity and responsiveness, the X-Ply Construction reinforces the sail’s framework.
Clear Visibility & Reinforced Strength
Improves sightlines and resilience, the SpectraView Window provides clarity while increasing durability.
Customizable Power Control
Adjusts based on rider preference, the 2 Position Titanium Clew Ring offers versatility in tuning.
Ultra-Responsive Handling
Spreads load evenly for a tight, locked-in feel, the Carbon Airframe Window ensures precise and efficient power distribution.
Optimized Rotation & Weight Reduction
Enhances durability and smooth transitions, the Equilibrium Batten Pockets reduces weight while improving performance.
Compact, Strong Batten System
Improves structure and longevity, the New Batten Tensioner makes the sail lighter, stronger, and more efficient.
Rugged & Reliable Mast Sleeve
Withstands extreme conditions, the Tough Mast Sleeve Construction reinforces durability in high-impact environments.
| Size | Battens | Boom cm | Head | Luff cm | Printed spec | Rec naish mast |
|---|---|---|---|---|---|---|
| 3.5 | 4 | 144 | Vario | 342 | 340 + 2 | RDM 370/340 |
| 3.7 | 4 | 148 | Vario | 354 | 340 + 14 | RDM 370/340 |
| 4 | 4 | 151 | Vario | 364 | 340 + 24 | RDM 370/340 |
| 4.2 | 4 | 154 | Fixed | 370 | 370 + 0 | RDM 370 |
| 4.5 | 4 | 156 | Fixed | 380 | 370 + 10 | RDM 370 |
| 4.7 | 4 | 160 | Fixed | 388 | 370 + 18 | RDM 370 |
| 5.3 | 4 | 170 | Fixed | 414 | 400 + 14 | RDM 400 |
| 5.6 | 4 | 176 | Fixed | 422 | 400 + 22 | RDM 400 |
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Shipping & Delivery
CLICK AND COLLECT:
If you are located in the UK at the checkout you will be able to select to collect from our Gosport Store
COURIERS WE USE:
Royal Mail for small and medium parcels
DPD for medium items like kites, harnesses and iSUPs
UPS, FedEx & Parcel Force for larger items like booms masts and boards
DISPATCH: All items are dispatched from our Gosport store and will experience a 24hr delay where we are closed on Tuesdays. Any orders taken after 1pm on Friday and over the weekend will be dispatched on Monday.
OUTSIDE UK: Please contact us if you would like something posted outside the UK.
EU Postage: Currently all EU items are attracting duty fees in your country and for this reason our webstore is not setup for orders to the EU but if you would like to purchase from us please.
RETURNS: You are responsible for returning items to us and if a refund is required we will refund only the value of the item and not the postage. Returns must be made within 14 days unless the item is deemed faulty.
RETURNS ADDRESS:
Andy Biggs Watersports
103 Bury Road
Alverstoke
Gosport
PO12 3PR
Please make sure to include your name so we can match up with your original order
DAMAGED ITEM: If an item is damaged in transit you must notify the us immediately upon delivery and let us know as soon as you can.
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