Aluminium Mast Extension HD RDM U-Pin 30cm Unifiber UF030035045 — MOVESEA COM Skip to content

Aluminium Mast Extension HD RDM U-Pin 30cm Unifiber UF030035045

Current price $80.70
Original price $84.95 MSRP
Original price $84.95 - Original price $84.95 MSRP
Original price $84.95 MSRP
$80.70 - $80.70
Current price $80.70
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In Stock

Estimated delivery: December 22, 2025 - December 25, 2025

Estimated delivery: February 02, 2026 - February 05, 2026

SKU UF030035045

Aluminium Mast Extension HD RDM U-Pin 30cm Unifiber UF030035045

Description:

The Unifiber Aluminium Mast Extension HD RDM U-Pin 30cm is a heavy-duty mast extension engineered for high-performance windsurfing, especially suited to racers and aggressive wave riders. The main tube is manufactured from hardened T6 aluminium for excellent stiffness and strength while the base is made from fiber-reinforced nylon to resist impact and wear. A stainless steel insert reinforces the joint between tube and base, and all components are toughened to survive under heavy loads and in demanding conditions. The U‑Pin locking system provides a secure, low-profile connection with Reduced Diameter Mast (RDM) rigs, and the pulley/cleat orientation makes rigging fast and intuitive. Built for durability and precision, this extension helps maintain rig tuning under load and reduces the risk of failure when pushing hard. Its robust construction offers riders confidence in choppy seas and during aggressive maneuvers.

Key Features:

  • Hardened T6 aluminium main tube for high stiffness and strength
  • Fiber-reinforced nylon base for impact resistance and durability
  • Stainless steel insert reinforces tube-to-base connection
  • Designed for HD (heavy-duty) loads — ideal for racers and wave riders
  • U‑Pin locking mechanism compatible with RDM masts for secure attachment
  • Pulley/cleat orientation optimized for easy, intuitive rigging
  • Toughened components throughout to withstand rough use and high loads
  • Low-profile, reliable design to maintain tuning and performance under stress

Specifications:

  • Manufacturer: Unifiber
  • SKU: UF030035045
  • Material: Hardened T6 aluminium tube; fiber-reinforced nylon base; stainless steel insert
  • Size/Dimensions: 30 cm extension length
  • Weight: Not specified by manufacturer
  • Color: Metallic aluminium tube with reinforced nylon base (typical)
  • Size: 30cm
  • Category: Mast Extensions
  • Age Group: Adults
  • Gender: Unisex

Recommended Use:

This mast extension is ideal for experienced and professional windsurfers — particularly competitive racers and aggressive wave riders who demand a robust, reliable connection between mast and board. It performs best in dynamic, high-load environments such as strong wind, choppy seas, and wave conditions where equipment is pushed hard. Pair with RDM masts and compatible downhaul/cleat systems; use with appropriate boards and rigging hardware for optimal safety and performance.

SKU : UF030035045

Barcode: 8720088621950

Vendor: Unifiber

Weight: 0.0 lb