Ronstan RF41530 Series 40 Fiddle Block with Becket and Cleat

The Ronstan RF41530 is a Series 40 all-purpose fiddle block featuring an integrated becket and cleat, designed for cruising and racing sailboats up to 26 feet. This versatile block combines exceptional strength with low-maintenance operation, making it ideal for mainsheets, halyards, vangs, and spinnaker control lines.

Key Features:

• Self-lubricating Acetal polymer sheaves on polished stainless steel races for smooth operation under dynamic and static loads
• Captive Lock™ universal head can be fixed in two planes or left free to swivel as needed
• Slotted pin shackle design prevents line fouling
• Quick-adjusting, tool-free cleat arm with secure multi-position locking
• Snap-fit removable becket pin allows for easy line splicing before installation
• Exceptionally high working load capacity with long service life

Construction:

• UV-stabilized Acetal sheaves for durability in harsh marine environments
• Fiber-reinforced Nylon cheeks with impact and UV resistance
• Grade 316 stainless steel bearing race, load strap, and head fitting

Applications:

• Mainsheet systems on off-the-beach catamarans, one-design classes, and sportsboats
• Fine-tune control systems including cunninghams, backstays, and other purchase systems
• Halyard and vang applications requiring integrated cleating

Replacement parts available: RF41010 Becket Pin, RF150 Shackle.