Ronstan RF9003-07 Dyneema Loop Link 3mm x 70mm

The Ronstan RF9003-07 Dyneema® Loop Link is an ultra-lightweight, high-strength soft attachment loop designed for modern sailing, high-performance rigging, and lightweight marine systems in demanding New Zealand conditions. Manufactured from premium UV-stabilised SK75 Dyneema® fibre, the RF9003-07 delivers exceptional strength-to-weight performance while providing a flexible low-profile alternative to traditional stainless steel shackles.

Engineered specifically for Ronstan Orbit Blocks™, the RF9003-07 suits Series 30 Double & Triple Orbit Blocks™ and Series 40 Single Orbit Blocks™, allowing direct soft attachment without intermediate metal hardware. The lightweight flexible design helps reduce rigging weight, minimise rattling hardware, and improve sail control responsiveness in dinghy racing, foiling, skiff, and sports boat applications.

Ronstan manufactures the RF9003-07 using impregnated multi-strand SK75 Dyneema® fibres for improved UV resistance and abrasion durability in harsh marine environments. Dyneema® is widely recognised within the marine industry for offering extremely high tensile strength while remaining significantly lighter than steel. Ronstan states the RF9003-07 is “10 times stronger and lighter than steel.”

With a 3mm diameter and 70mm internal length, this Dyneema® loop is ideal for lightweight high-load sailing systems, soft shackling, low-friction ring attachments, cascading vang systems, and performance sail control applications where reduced hardware weight and flexibility are essential.

Key Features

• Genuine Ronstan RF9003-07 Dyneema® Link
• Manufactured from SK75 Dyneema® fibre
• Lightweight soft attachment system
• Extremely high strength-to-weight ratio
• UV stabilised multi-strand construction
• Impregnated for abrasion resistance
• Flexible low-profile design
• Ideal for Orbit Blocks™
• Corrosion-free rigging solution
• Reduces rigging weight
• Suitable for high-performance sailing
• Long-lasting marine durability

Ronstan specifies the RF9003-07 as:

• “Dyneema® Link, 3mm x ID 70mm”
• Suitable for “Series 30 Double & Triple Orbit Blocks™ and Series 40 Single Orbit Blocks™”

Why Buy the Ronstan RF9003-07 from Barton Marine NZ?

At Barton Marine NZ we supply genuine Ronstan sailing hardware trusted by New Zealand sailors, racers, and marine professionals. The RF9003-07 Dyneema® Loop Link is ideal for modern lightweight rigging systems requiring exceptional strength, reduced weight, and flexible soft attachment solutions.

Perfect for:

• Orbit Block™ attachments
• Foiling dinghies
• Sports boats
• Skiff racing
• Lightweight sail controls
• Cascading vang systems
• Low-friction ring attachments
• High-performance sail trimming
• Offshore racing yachts
• Modern soft rigging systems

Technical Specifications

Ronstan specifications list:

• Basket Breaking Load: 1200kg
• Vertical Breaking Load: 600kg
• Diameter: 3mm
• Internal Length: 70mm

Common Applications

The Ronstan RF9003-07 is commonly used for:

• Orbit Block™ rigging
• Soft attachment systems
• Foiling dinghy rigging
• Sports boat sail controls
• Cascading vang systems
• Low-friction ring setups
• Lightweight racing hardware
• Barber haulers
• High-load control lines
• Offshore racing applications

Ronstan notes the RF9003-07 directly suits:

• Series 30 Double & Triple Orbit Blocks™
• Series 40 Single Orbit Blocks™

Performance Benefits

The Ronstan RF9003-07 provides:

• Exceptional strength-to-weight ratio
• Reduced rigging weight
• Excellent UV resistance
• Improved flexibility over metal shackles
• Reliable high-load performance
• Reduced hardware noise
• Long-lasting marine durability

Ronstan recommends attaching Dyneema® links only to “smooth, well rounded profiles” to minimise abrasion and maximise service life.