Aluminium Mast Extension SDM V3 U-Pin 45cm Unifiber UF030070054

Aluminium Mast Extension SDM V3 U-Pin 45cm Unifiber UF030070054

Description:

The Unifiber Aluminium Mast Extension SDM V3 U-Pin (45 cm) is a high-performance mast extension designed for windsurfing riders who need reliable downhaul control and a durable, lightweight connection between mast and boom. The V3 blends the proven lightweight aluminium tube of the V2 with the high-strength polyamide base and HD-style pulley options, delivering a strong, easy-to-use system for aggressive sail tuning. A Polyamide "Open, Twist, Slide & Lock" collar provides fast, secure locking and simple release under load. The base accepts three pulley positions for simpler downhauling and can be configured as an 8:1 system for maximum mechanical advantage, while the supplied 4 mm polyester rope and U-pin fastening ensure corrosion-resistant, reliable attachment. Built for durability and low maintenance, the V3 gives riders smoother downhaul operation, better sail control and confidence in demanding conditions.

Key Features:

• Robust aluminium tube construction for a lightweight, stiff extension.
• High-strength polyamide base engineered for enhanced durability and impact resistance.
• Three pulley positions for improved downhaul leverage; configurable as an 8:1 system for heavy-duty tuning.
• Polyamide "Open, Twist, Slide & Lock" collar for quick, secure locking and easy operation.
• Supplied with 4 mm polyester downhaul rope for immediate use and reliable performance.
• U-pin style attachment with stainless-steel hardware for corrosion resistance and secure fit to SDM booms/masts.
• Maintains the low weight and balance of the V2 tube while adding HD-style strength and pulley versatility.
• Designed to reduce rider fatigue by making downhauling smoother and more efficient.

Specifications:

Manufacturer: Unifiber
SKU: UF030070054
Material: Aluminium tube; polyamide base and collar; 4 mm polyester rope; stainless steel U-pin/hardware
Size/Dimensions: 45 cm (approx. 17.7 in) extension length; SDM (Short-Standard Diameter) fitting
Weight: Lightweight aluminium construction (manufacturer does not specify exact weight)
Color: Silver aluminium tube with black polyamide base and collar (manufacturer standard)
Size: 45
Category: Mast Extensions
Age Group: Adults
Gender: Unisex

Recommended Use:

Ideal for recreational through advanced and professional windsurfers who require dependable downhaul performance and quick rig adjustments. Best suited to freeride, wave and slalom applications where strong, repeatable downhaul and low-weight balance are important. Performs well in a wide range of water and wind conditions, including strong winds where high downhaul loads are needed. Pairs best with SDM-compatible masts and booms; consider using Unifiber ropes, boom fittings and protective sleeves for longest service life.