We Ship Worldwide! | FREE SHIPPING! for US Continental orders over $99. Click for details.

Ronstan  |  SKU: RONRF55530  |  Manuf. Code: RF55530

Ronstan Series 55 BB Orbit Block, Fiddle Becket Cleat Swivel

$136.95 USD $171.19

Description

The Ronstan Series 55 BB Orbit Block, Fiddle Becket Cleat Swivel #RF55530 is designed to be incredibly lightweight yet robust, making it ideal for small to mid-sized sailing applications. Its unique orbital design reduces mass without compromising on performance, and the stainless steel fitting ensures durability and reliability on the water. This block is perfect for sailors looking for efficiency and strength in their rigging components.

Features & Benefits

  • World's lightest block for its working load.
  • High compression acetal ball bearings for minimal friction.
  • Fibre-reinforced load frame for stress-optimized support.
  • UV-stabilised Dyneema® link for ultimate strength and lightness.
  • Stainless steel head fitting for enhanced durability.

This block features high compression strength carbon black acetal ball bearings and a carbon fibre reinforced, PTFE impregnated nylon sheave, ensuring long-lasting, low-friction performance. The frame and cheeks are made from toughened, glass fibre reinforced nylon, and the rope link is crafted from UV-stabilized SK75 Dyneema®. Compatible with mainsheet, halyard, vang, and backstay applications on boats up to 9m (30ft) and sportsboats.

Usage

Ideal for mainsheet systems and spinnaker sheets on dinghies, sportsboats, and small keelboats. Suitable for control line applications on larger yachts.

Features

Features:

  • Ultra Lightweight.
  • Low friction 2-stage Orbital ball bearing system.
  • Highest working load in its class.
  • Low profile and compact.
  • High performance cleating.

Technical Information


DescriptionImperialMetric
Sheave Ø55.00 + 35.00 mm.55.00 mm.
Maximum Rope 2/5 in.10.00 mm.
Pin Ø1/5 in.5.00 mm.
Maximum Working Load1102.50 lb.500.00 kg.
Breaking Load2205.00 lb.1000.00 kg.
Weight8.36 oz.237.00 gr.