Ronstan RF51200 50mm double pulley block Ronstan RF51200 50mm double pulley block
Ronstan RF51200 50mm double pulley block

Ronstan

Ronstan RF51200 50mm Double Block | Series 50 Stainless Sailing Pulley

$137.90
Tax included.

The Ronstan RF51200 is a durable and efficient 50mm double pulley block, designed for medium-load rigging applications on dinghies, keelboats, and small yachts. With twin sheaves and 316 stainless steel cheeks, this block delivers smooth, low-friction performance in tough marine conditions.

Ideal for control lines, vang systems, cunninghams, and other multi-line setups, the RF51200 is built to handle demanding sailing environments. The UV-resistant acetal sheaves ensure long-lasting durability and consistent line handling, making it a trusted choice for performance-focused sailors.

✅ Key Features

  • Ronstan RF51200 – 50mm double pulley block

  • Twin UV-resistant acetal sheaves for smooth operation

  • 316 stainless steel cheeks for marine durability

  • Designed for medium-load applications

  • Ideal for vang systems, outhauls, and control lines

  • Reliable, corrosion-resistant construction

  • Compact and efficient twin-sheave design

  • Part of the Ronstan Series 50 block range

Ronstan RF51200 50mm Double Pulley specifications:

  • Sheave Diam. 50mm
  • Max. Rope Diam. 12mm
  • Pin Diam. 1/4 in.
  • Max. Working Load 2200 lb
  • Breaking Load 4410 lb