Ronstan RF51100 50mm single pulley block Ronstan RF51100 50mm single pulley block
Ronstan RF51100 50mm single pulley block

Ronstan

Ronstan RF51100 Single Block | 50mm Pulley with Stainless Cheeks

$81.90
Tax included.

The Ronstan RF51100 is a versatile and durable 50mm single block, ideal for medium-load sailing applications on dinghies, keelboats, and sports boats. Featuring 316 stainless steel cheeks and a UV-stable acetal sheave, this block is built to perform in demanding marine environments.

Perfect for control lines, sheets, vangs, and outhauls, the RF51100 delivers smooth, reliable operation with minimal maintenance. Its compact design and strong construction make it a go-to choice for sailors who need dependable performance and corrosion resistance.

✅ Key Features

  • Ronstan RF51100 – Single 50mm pulley block

  • UV-resistant acetal sheave for smooth line movement

  • 316 stainless steel cheeks for strength and longevity

  • Lightweight and compact design

  • Suitable for vang systems, sheets, outhauls, and control lines

  • Corrosion-resistant – ideal for saltwater use

  • Reliable performance for keelboats, dinghies, and small yachts

  • Part of Ronstan’s trusted Series 50 hardware range

Ronstan RF51100 50mm Single Pulley specifications:

  • Sheave Diam. 50mm.
  • Max. Rope Diam. 12mm
  • Pin Diam. 5mm
  • Max. Working Load 750kg
  • Breaking Load 1500kg