Ronstan RF55521 Orbit Series 55 Fiddle Block with Adjustable Cleat and Dyneema Link Head Ronstan RF55521 Orbit Series 55 Fiddle Block with Adjustable Cleat and Dyneema Link Head
Ronstan RF55521 Orbit Series 55 Fiddle Block with Adjustable Cleat and Dyneema Link Head

Ronstan

Ronstan RF55521 Orbit Series 55 Fiddle Block – Adjustable Cleat

$237.00
Tax included.

The Ronstan RF55521 Orbit Series 55 Fiddle Block is engineered for high-performance sailing applications, offering exceptional strength-to-weight ratio. Featuring a 55mm main sheave and a 35mm fiddle sheave, this block accommodates rope diameters up to 10mm. Its 2-stage orbital ball bearing system ensures low friction and high load capacity, with a maximum working load of 500kg and a breaking load of 1000kg. The adjustable cleat arm allows for flexible alignment, making it ideal for mainsheet, halyard, and spinnaker systems on dinghies, sportsboats, and small keelboats up to 9m (30ft). The Dyneema® Link Head provides a secure and lightweight attachment point, enhancing overall performance.

Ronstan RF55521 55mm Orbit Fiddle block, adjustable cleat specifications:

  • Sheave Ø 55 + 35 mm
  • Max. Rope Ø 10 mm
  • M.W.L. 500 kg
  • B. L. 1000 kg
  • Weight 231 g