Essentials SDM Alu. Mast Extension Cross Pulley (U-pin) 30
Simple Rigging. Solid Performance.
Built for Easy Days on the Water
The Essentials SDM Aluminium Extension is the ideal choice for recreational windsurfers who want reliable gear that works – every time. Whether you’re hitting the water for a weekend session or setting up school rigs, this extension delivers smooth, consistent performance without the fuss
Smarter Rigging with Less Effort
Thanks to its clever 6:1 cross pulley system, downhauling is easier and quicker – even with larger sails. The dual-pulley setup multiplies your pulling power, reducing strain and helping you rig to the perfect tension without breaking a sweat.
Reliable Strength Where It Counts
- 2mm wall thickness aluminium for a strong yet manageable weight
- Cross pulley design ensures smooth, efficient rope travel
- Available in 30cm (0.619kg) and 45cm (0.718kg) to suit your setup
- Every detail is tuned for practicality and reliability, so you can rig up with confidence and enjoy your session.
Why Choose the Essentials SDM Aluminium Extension?
- Easy rigging with 6:1 cross pulley advantage
- Sturdy and dependable construction for long-term use
- Ideal for schools, rentals, and recreational sailors
- Lightweight and strong for all-around performance
- Compatible with standard U-Pin base systems
The Everyday Rigging Hero
The Essentials SDM Aluminium Extension takes the hassle out of rigging and gives you more time on the water. Simple, strong, and smart – just what you need for stress-free sailing.
We build gear to last — and we back it up.
- Year 1 — Unconditional: Full coverage, no questions asked. Any issue, we make it right.
- Year 2 — Conditional: Continued coverage against manufacturing defects.
Hold onto your proof of purchase. If you need us, we're here.
For warranty claims on products purchased from a retailer, please contact the store where you bought the product. They will coordinate with us to resolve any issues under warranty. Find a dealer
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