Ronstan

Ronstan RF20101 20mm Single Loop Head Pulley | Sailing Block

$25.90
Tax included.

The Ronstan RF20101 is a compact and efficient 20mm single loop head pulley block, engineered for high-performance sailing applications. Designed with ball bearings and a UV-resistant acetal sheave, this Series 20 block delivers low friction and consistent reliability under load.

Its loop head design makes it ideal for fixed-position applications such as cunninghams, vangs, and outhauls, particularly on dinghies and small keelboats. Built with 316 stainless steel cheeks, this block stands up to harsh marine environments.


Key Features

  • Ronstan RF20101 Series 20 single loop head block

  • 20mm ball bearing pulley with acetal sheave

  • Ideal for control lines in fixed mounting points

  • Durable 316 stainless steel cheeks

  • Lightweight design for performance sailing

  • UV-resistant, corrosion-proof components

  • Suitable for vang, outhaul, cunningham, and more

  • Trusted Ronstan quality, built for NZ conditions

Ronstan RF20101 Single Loop Head Pulley Ball Bearing 20mm specifications:

  • Sheave Ø 20mm
  • Max. Rope Ø 6 mm
  • M.W.L. 250 kg
  • B. L. 550 kg
  • Weight 16 g