Ronstan S20 BB Block Upright Lead RF20171

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  • Regular price $19.50
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  • In stock (2 units), ready to be shipped


Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.

Sheave Ø 20 mm
Max. Rope Ø 6 mm
Max. Cable Ø - mm
Fastener Ø 4.0 mm
M.W.L. 250 kg
B. L. 550 kg
Weight 18 g