The Ronstan RF1387 Rope Jammer is a compact, high-performance solution for securing control lines on dinghies, trailer yachts, and small keelboats. Designed for 4–8mm rope, it provides a strong, reliable alternative to cam cleats when higher holding power is required.

Featuring a stainless steel frame and ribbed aluminium base plates, the RF1387 delivers excellent durability and grip, even under high loads. Its narrow profile allows installation in tight spaces or in banks of multiple jammers, making it ideal for organised cockpit layouts and performance sailing setups.

With a maximum working load of 410kg, this rope jammer ensures secure line holding for halyards, control lines, and trimming systems where reliability is critical.

Key Features

• Designed for 4–8mm rope diameter
• 410kg maximum working load for secure holding
• Stainless steel frame for strength and corrosion resistance
• Ribbed aluminium base plates for enhanced grip
• Compact, narrow profile for tight installations and multiple units
• Stronger holding than cam cleats, more compact than rope clutches
• Ideal for halyards, control lines, and trimming systems

Specifications

• Rope Diameter: 4–8mm
• Maximum Working Load: 410kg
• Length: approx. 60mm
• Weight: approx. 165g
• Materials: Stainless steel frame, aluminium base plates
• Application: Rope jammer / line holding device

Why Choose the Ronstan RF1387?  

For New Zealand sailors, reliable line control is essential for both performance and safety. The RF1387 offers a high-strength, compact solution that sits between a cam cleat and a full rope clutch—giving you stronger holding power without the bulk.

It’s ideal for dinghies, trailer yachts, and performance setups, especially where space is limited but load requirements are higher. Whether racing or cruising, it delivers dependable grip and long-term durability in NZ marine conditions.