Ronstan

Ronstan RF45110 40mm Single Pulley Block – Swivel Head with Becket

$75.40
Tax included.

The Ronstan RF45110 is a high-performance 40mm single pulley block featuring a swivel head and integrated becket, designed for versatile rigging setups on dinghies, keelboats, and small yachts. Built with acetal ball bearings, a UV-stabilised sheave, and reinforced glass fibre cheeks, this block delivers low-friction operation and excellent strength-to-weight performance.

The swivel head allows for optimal alignment under load, while the becket enables a two-part control line or fixed end for more flexible rigging. Ideal for use in mainsheets, vangs, and general control systems where durability, efficiency, and smooth operation matter.

Specifications:

  • Sheave Diameter: 40mm

  • Max Rope Diameter: 10mm

  • Material: Acetal sheave, ball bearings, glass fibre reinforced nylon cheeks

  • Configuration: Single block with becket and swivel head

  • Applications: Mainsheets, vangs, control lines, multi-directional rigging

  • Features: Low-friction, corrosion-resistant, compact & efficient

A reliable, adaptable block trusted by sailors for high-performance sailing and cruising. Available now at Barton Marine NZ, your official source for Ronstan sailing and rigging hardware.