Ronstan RF103 Wire Block with Removable Nylatron Sheave – 45mm Sheave Diameter for Marine Rigging

Wire Block - Tubular Rivet Head w/Removable Nylatron Sheave - 45mm(1-3/4") Sheave Diameter

Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination

Features:

• Flared cheeks to minimise chafing
  
• Removable sheaves
  
  Applications:
  Wire blocks suit halyards, vang and backstay applications
  
  Materials:
  
  • Grade 316 stainless steel cheeks
    
  • Nylatron sheave
  
  
  Specifications:
  Sheave : 45mm(1-3/4")
  Max. Cable : 6mm(1/4")
  M.W.L:850kg(1,870lbs)
  B.L.: 1,700kg(3,740lbs)
  Weight: 88kg(3.1oz)

The Ronstan RF103 wire block features a durable tubular rivet head design with a removable Nylatron sheave, making it an essential component for marine rigging applications. With a 45mm (1-3/4 inch) sheave diameter, this wire block is engineered to accommodate cables up to 6mm (1/4 inch) in diameter, providing reliable load support with a maximum working load of 850kg (1,870 lbs). Crafted with grade 316 stainless steel cheeks, it offers excellent corrosion resistance suitable for harsh marine environments. The removable sheave allows for easy installation and maintenance without the need to cut the wire termination, saving time and reducing installation complexity. The flared cheeks are designed to minimize chafing, ensuring longevity and reduced wear on the rigging lines. Ideal for halyards, vang, and backstay applications, this wire block is built for durability and ease of use, making it a dependable choice for sailboat rigging systems. Lightweight at only 3.1 ounces, it combines strength with minimal added weight, enhancing overall boat performance. Features: Flared cheeks to minimize chafing, removable sheaves for easy fitting, corrosion-resistant materials. Applications: Suitable for halyards, vang, and backstay systems in marine vessels. Materials: Grade 316 stainless steel cheeks and Nylatron sheave ensure durability and corrosion resistance. This wire block from Ronstan offers a practical, high-performance solution for sailors seeking reliable rigging hardware that combines strength, ease of installation, and maintenance simplicity.

Features:

• Flared cheeks to minimize chafing

• Removable sheaves for easy fitting and maintenance

• Corrosion-resistant grade 316 stainless steel cheeks

• Nylatron sheave designed for durability

• Suitable for halyards, vang, and backstay applications

• Supports up to 6mm (1/4 inch) cables with a max working load of 850kg (1,870 lbs)