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Binks is your stop for all boating and watersport needs
Binks is your stop for all boating and watersport needs

Ronstan S20 BB Orbit Block, Double, Becket, Lashing (RF25209)

by Ronstan
Original price $34.16 - Original price $34.16
Original price
$34.16 - $34.16
Current price $34.16
SKU RF25209

The incredible Series 20 Orbit Block is capable of working loads of up to 300kg while weighing a mere 14 grams. It's so light that it needs to be lashed down!


  • Suits maximum 6mm (1/4") lines
  • Lightweight and strong
  • 2-stage ball bearing system for efficient and effortless trimming
  • Hollow hub for becket take-off

Sheave 20 mm
Max. Rope 6 mm
Max. Cable mm
Pin - mm
M.W.L. 300 kg
B. L. 800 kg
Weight 14 g


  • Control lines
  • Leech Lines & Cunninghams
  • Cascading vangs
  • Kite bridles
  • Perfect for multi purchase vang systems on performance dinghies such as the Moth, 49er and ILCA®


  • BB Sheave: High compression strength acetal
  • HHL sheave and bearing race: Grade 2205 stainless steel, ball bearings: Grade 304 stainless steel
  • Frame/cheeks: Toughened nylon
  • Load straps (RF21107): Grade 316 stainless steel
  • Frame/cheeks (RF21107): Toughened, glass fibre reinforced nylon

Series 20 BB Orbit Block Lashing Head User Instructions