Ronstan RF103 Wire Block with 45mm Nylatron Sheave and Removable Sheave Design

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 is a precision-engineered component designed for demanding marine applications, including halyards, vang, and backstay systems. Crafted with a durable grade 316 stainless steel cheeks and featuring a removable Nylatron sheave, this wire block provides excellent functionality and longevity. Its compact 45mm (1-3/4 inch) sheave diameter allows for smooth operation with wire cables up to 6mm (1/4 inch) in diameter, making it a versatile choice for various rigging needs.

The RF103 wire block incorporates flared cheeks to minimize chafing and ensure the wire runs smoothly through the sheaves. The removable sheave design simplifies installation and maintenance, allowing for easy fitting without the need to cut wire terminations. The robust construction and high working load limit (850kg or 1,870 lbs) make this component suitable for heavy-duty marine environments, providing both reliability and safety.

Whether upgrading existing rigging or installing new systems, the Ronstan RF103 wire block offers a combination of sturdy materials, thoughtful design features, and ease of use. Its lightweight build, weighing only about 3.1 ounces, ensures minimal added weight to your rigging setup while delivering exceptional performance. The non-oversized, truck-freight-free shipping option makes it convenient to order and integrate into your marine projects.

Trust the Ronstan RF103 wire block to deliver smooth, secure wire management with a durable construction that withstands the harsh conditions of marine environments. Its thoughtful features and high-quality materials make it an ideal choice for sailors and riggers seeking dependable hardware for critical sailing systems.

Features:
* Flared cheeks to minimize chafing and ensure smooth wire passage
* Removable sheaves for easy fitting and maintenance without cutting wire terminations
* Constructed with grade 316 stainless steel cheeks for corrosion resistance
* Nylatron sheave offers smooth operation and durability
* Suitable for halyards, vang, and backstay applications with a 45mm (1-3/4 inch) sheave diameter
* Supports wire cables up to 6mm (1/4 inch) with a maximum working load of 850kg (1,870 lbs)