Ronstan

Ronstan RF41140 20mm Stand-Up Block | Light-Duty Pulley for Small Boats

$84.00
Tax included.

The Ronstan RF41140 is a reliable and lightweight 20mm stand-up pulley block, engineered for light-load rigging applications on dinghies, tenders, and small keelboats. The integrated stand-up base keeps the block upright during operation, making it perfect for deck-mounted setups where line control and alignment are critical.

Designed for use in systems like flag halyards, cunninghams, outhauls, and trimming lines, this block features UV-resistant materials and a smooth sheave for efficient, low-friction performance. Compact, durable, and easy to install, it’s an ideal solution for permanent rigging on smaller boats.


Key Features

  • Ronstan RF41140 – 20mm stand-up block

  • Keeps block upright for clean line handling

  • Compact and lightweight design

  • UV-stable materials for marine durability

  • Suitable for flag halyards, outhauls, and light control lines

  • Ideal for dinghies, tenders, and small yachts

  • Easy to install on deck or spars

  • Smooth sheave for low-friction operation

Ronstan RF41140 Stand-up pulley specifications:

  • Sheave Diam. 40mm.
  • Max. Rope Diam. 10mm.
  • Max. Working Load - 400 kg
  • B. L. - 800 kg