Extensions
RDM Extension
Essentials RDM Aluminium V2
From 64.95€
HD RDM Aluminium
From 84.95€
HD RDM Carbon
From 179.00€
Elite RDM V2 Stainless Steel
From 109.00€
Elite RDM V2
From 229.00€
SDM Extension
Essentials SDM Aluminium V2
From 59.95€
HD SDM Aluminium
From 84.95€
HD+ SDM Aluminium
From 92.95€
Elite SDM V2 Stainless Steel
From 129€
Elite SDM V2 Carbon
From 229€
Mast Extension Collection
ESSENTIALS, HD, ELITE
We offer three mast extension ranges to suit every need:
- Essentials - Value-driven aluminum extensions perfect for recreational windsurfers.
- HD - Durable, performance-focused extensions in carbon and aluminum, ideal for progressing riders.
- Elite - Premium carbon and aluminum options delivering top-tier performance for advanced riders.
Essentials
The Unifiber Essentials mast extensions deliver quality performance at an exceptional value, making them ideal for recreational windsurfers and weekend warriors.
Designed for reliability and ease of use, they’re the perfect choice for those exploring high-end equipment without compromising on affordability.
HD
Our HD Range blends durability and performance, ideal for wave sailors, racers, and freeriders. Choose aluminium for strength or carbon for lightweight power—both built for demanding conditions.
Elite
The Elite range of mast extensions is designed for riders who demand the very best.
Whether you choose the Stainless Steel or 100% Carbon options, each extension is built to meet the needs of advanced riders seeking peak performance.
Engineering Excellence
Unifiber's premium mast extensions deliver superior performance through metal-reinforced connections, precision adjustable collars, and enhanced wall thickness - ensuring exceptional durability and reliability for every windsurfing session.
Complete Range for Every Rider
We offer a complete range of extensions for both RDM and SDM masts, catering to every budget without compromising on quality and performance.
Premium Rope
Our ropes are made from premium Dyneema, ensuring exceptional strength, low stretch, and maximum durability. Designed to withstand high tension and intense use, they provide smooth rigging and long-lasting performance, giving you confidence on the water.
Elite Series extensions come with premium Dyneema rope, HD Series includes pre-stretched Marlow rope, while our Essentials line features dependable Polyester rope.
Frequently Asked Questions About Mast Extensions
Choosing the right mast extension is crucial for optimal windsurfing performance
Whether you're a recreational windsurfer or a competitive racer, understanding the technical aspects of mast extensions can significantly impact your sailing experience
Our comprehensive FAQ covers everything from locking mechanisms and pulley systems to rope types and extension lengths, helping you make an informed decision for your specific needs.
What are the different locking mechanism options?
The main systems available are:
- U-pin Push button: Operates with a single-sided plate, suitable for most conditions
- US-Push Pin: Most secure against unwanted disconnection but less ergonomic, requires two-sided operation
How do I choose the right minimum extension length?
Choose an extension with a minimal setting close to 0 if your sail's recommended mast length matches your mast. This prevents adding unnecessary height to your sail's center of effort, maximizing control.
What safety margin should I keep for maximum extension settings?
Always maintain a minimum 5cm safety margin beyond your sail's recommended extension length. Different manufacturers may have varying definitions of recommended settings.
Should I choose a 3 or 4 pulley system?
Match your extension's pulley count to your sail's requirements. While 4-pulley extensions work with 3-pulley sails, optimal rope alignment occurs when pulley counts match.
What's the importance of extension tube diameter?
For SDM masts, slightly thinner tubes reduce the risk of getting stuck due to sand and salt. Thicker tubes offer additional strength but add weight.
How do pulley orientations affect rigging?
Two orientations exist:
- 0 degrees (regular)
- 90 degrees (perpendicular)
Choose an orientation matching your sail for intuitive rigging, though some extensions accommodate both.
What rope types are available for mast extensions?
Three main rope options exist, ranked by quality:
- Basic: Polyester ropes (standard quality)
- Better: Pre-stretched ropes (smoother operation)
- Best: Dyneema® ropes (strongest, lightest, lowest friction)
How does pulley diameter affect performance?
Larger pulley diameters reduce rope friction during downhauling by minimizing rope compression against the pulley.
Are all mast extensions barefoot-friendly?
Not all extensions are comfortable for barefoot sailing. Some minimalist designs have sharp components that may be uncomfortable when adjusting downhaul trim.
Consider this if you prefer sailing barefoot.
Which locking system is more popular in different regions?
U-Pin systems dominate the European market, offering better ergonomics. US-Pin systems remain popular in the USA, featuring simpler designs that perform well in challenging conditions.
What determines a mast extension's durability?
Wall thickness significantly impacts durability. Thicker walls provide greater durability but increase weight. Racing sail users should consider extensions with extra thick walls or carbon construction.
Extension Knowledge
Windsurf Mast Extension Guide
Upgrade your windsurfing setup with our comprehensive Mast Extension Guide. This guide covers everything from selecting the right material to finding the perfect fit for your mast
Choosing between carbon and aluminium extensions?
Learn the pros & cons, and ideal use cases for each, mast extension helping you make the best choice for your windsurfing setup.
What is the Best Rope to Use ?
The right rope is crucial for ensuring your mast extension performs reliably and efficiently. From durability and strength to flexibility and ease of use, the choice of rope can significantly impact your windsurfing experience