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

  • Flared cheeks to minimise chafing
  • Removable sheaves


  • Wire blocks suit halyards, vang and backstay applications


  • Grade 316 stainless steel cheeks.
  • Nylatron® sheave

Product Specifications

Sheave Ø 45 mm
Max. Rope Ø - mm
Max. Cable Ø 6 mm
Pin Ø - mm
M.W.L. 850 kg
B. L. 1700 kg
Weight 80 g

SKU 8541709
Model # RF104
Brand Ronstan

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