Ronstan RF1759 50mm Acetal Sheave – 15.6mm Rope Pulley Wheel NZThe Ronstan RF1759 50mm Acetal Sheave is a robust, high performance pulley wheel designed for marine rigging systems, block repairs, and custom installations. With a 50mm diameter and 15. 6mm width, it is ideal for larger rope applications where durability and smooth operation are essential. Manufactured from UV stabilised acetal, this sheave provides excellent resistance to wear, impact, and harsh marine environments. Its self lubricating properties

road film and salt residue without harsh rubbing

Spring-loaded snap hook mechanism

Ideal for local boaties

Simple installation

Connect the oil pump to the cars battery

Halyard and sheet maintenance

or flown as flag)

The Ronstan RF639 Wide D Shackle with a 5/16" (7

low-profile design ideal for limited dash or console space

Light Colour: Intense Red

✅ Enhances onboard gas safety compliance

and camping