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Unifiber Essentials SDM Alu. Mast Extension Cross Pulley (U-pin)
Unifiber Essentials SDM Alu. Mast Extension Cross Pulley (U-pin)
Niedriger Lagerbestand: 2 verbleibend
Verfügbarkeit für Abholungen konnte nicht geladen werden
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
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.

Let customers speak for us
from 120 reviews
Practical and comfortable - even with a large head. Forehead padding much improved from previous version. Like the extra ear protection this helmet gives. Once helmet is on I don’t notice it - even ducking through a wave.
Good team advise and quality product
Great friendly service and awesome product.
Said they would deliver within a week and did exactly this. A bit weird as the gear came from germany so all tracking info in german, but not a big deal (import duty were paid already btw).
Bought over the phone. Great value and service. Christian was lovely Delivered really quickly andgenuine products. What not to like!
Great price for a high end inflatable SUP
Because of my holidays I needed to delay shipping.
PHW easy to contact and speak to in person, very understanding and accommodating.
The courier service was personable and impeccable.
I live in Belgium and had forgotten to factor in the heavy customs costs, but the board was still good value even so .
Lovely and soft very bright colours and the biggest beach towel I have bought
Well designed, made and fit for purpose. Perfect for the endless rainy daily walks. Very happy.
Absolute fantastic dryrobe coat would 100% recommend it's so so warm really happy with my purhase
Very prompt delivery
Keeps your head nice and toastie and the bright colour means you can wear it in the lake, so it's dual purpose
Perfect …very warm and cozy
So warm. The best boots ever.
I bought this bag for an RRD 145 litre hard board (180x80) High quality and fits very snug. Very helpful staff and fast delivery thank you !
Excellent great service and happy with the wing
Many thanks