The Ronstan RF9004-09 Dyneema® Loop 4mm x 90mm is a premium soft attachment loop engineered for lightweight, high-load sailing and marine rigging applications in demanding New Zealand conditions. Manufactured from UV-stabilised SK75 Dyneema® fibre, this loop delivers an exceptional strength-to-weight ratio while providing a flexible, corrosion-free alternative to conventional stainless steel shackles and fittings. Ronstan's soft attachment products are specifically designed for modern high-performance sailing systems where reducing weight and increasing efficiency are critical.

With a 4mm diameter and 90mm internal length, the RF9004-09 is ideal for attaching Ronstan Orbit Blocks™, low-friction rings, strops, control systems, and other performance sailing hardware. The soft loop design eliminates metal-to-metal contact, helping reduce noise, wear, and unnecessary rigging weight while maintaining exceptional load capacity.

Constructed using impregnated multi-strand Dyneema® fibres, the loop offers excellent resistance to UV degradation, abrasion, fatigue, and harsh saltwater environments. Dyneema® is widely recognised throughout the marine industry for providing extremely high tensile strength while being significantly lighter than steel, making it the preferred choice for modern racing yachts, foiling boats, sports boats, and offshore performance vessels.

Whether upgrading a racing dinghy, optimising a foiling yacht, or building lightweight control systems, the Ronstan RF9004-09 provides dependable performance and long service life.

Key Features

• Genuine Ronstan RF9004-09 Dyneema® Loop
• Manufactured from premium SK75 Dyneema®
• 4mm diameter x 90mm internal length
• Lightweight soft attachment solution
• Exceptional strength-to-weight ratio
• UV-stabilised marine-grade fibres
• Corrosion-free alternative to metal shackles
• Flexible low-profile construction
• Ideal for Orbit Blocks™ and low-friction rings
• Excellent abrasion and fatigue resistance
• Suitable for high-performance sailing systems
• Long-lasting marine durability

Ronstan manufactures its soft attachment products using UV-stabilised Dyneema® fibres for demanding marine applications.

Why Buy the Ronstan RF9004-09 from Barton Marine NZ?

At Barton Marine NZ we supply genuine Ronstan sailing hardware trusted by competitive sailors and marine professionals throughout New Zealand. The RF9004-09 Dyneema Loop is an excellent solution for modern rigging systems where maximum strength, flexibility, and minimum weight are essential.

Perfect for:

• Orbit Block™ attachments
• Low-friction rings
• Soft rigging systems
• Foiling dinghies
• Sports boats
• Trailer sailers
• Offshore racing yachts
• Cascading vang systems
• Barber haulers
• High-performance sail controls

Technical Specifications

Ronstan offers a comprehensive range of Dyneema® soft links and loops for lightweight marine rigging applications.

Common Applications

The Ronstan RF9004-09 is commonly used for:

• Orbit Block™ mounting
• Low-friction ring attachment
• Soft shackle replacement
• Cascading vang systems
• Mainsheet systems
• Foiling dinghy rigging
• Sports boat control systems
• Barber haulers
• Lightweight sail controls
• Offshore racing rigging

Dyneema® soft attachment systems are increasingly used because they reduce hardware weight while maintaining excellent load capacity and flexibility.

Performance Benefits

The Ronstan RF9004-09 provides:

• Outstanding strength-to-weight ratio
• Reduced overall rigging weight
• Excellent UV resistance
• Corrosion-free operation
• Flexible low-profile attachment
• Reliable high-load performance
• Long-lasting marine durability

Modern soft rigging systems are widely adopted in performance sailing because they minimise hardware weight while improving efficiency and reliability.