Ronstan, Series 50 All Purpose Block, Fiddle with Becket and Cam Cleat, RF51530

Description

The Series 50 All Purpose Block is a versatile solution for various sailing needs. Featuring self-lubricating Acetal polymer sheaves on polished stainless steel races, it performs well under both dynamic and high static loads. Ideal for sheets, halyards, and control line applications in both cruising and racing, this block ensures durability and long service life.

The Captive Lock™ universal head can be fixed in two planes or allowed to swivel freely. The cleat arms adjust quickly without tools and lock securely. The removable becket pin allows for line splicing before fitting.

Features include exceptionally high working loads, low maintenance, and a long service life. The self-lubricating Acetal polymer sheave ensures low friction and extreme durability. The slotted pin shackle prevents fouled lines, and the snap-fit removable becket pin and multi-position cleat arm add to its versatility.

Applications include mainsheet and halyard systems, vang and spinnaker control lines on boats up to 10m (33ft). It's ideal for fine-tuning mainsheet tackles, cunninghams, backstays, and other control line systems.

Specifications

• B.L. (kg): 1500
• M.W.L. (kg): 700
• Max. Rope diameter (mm): 10
• Pin Ø (mm): 5
• Sheave diameter (mm): 50
• Type of Block: Fiddle
• Weight (g): 318

Notes: *MWL based on maximum allowable line load through cleat of 175kg (385lb), 4:1 purchase.