Ronstan RF20212 20mm Double Pulley with Becket | Series 20 Block

The Ronstan RF20212 is a versatile 20mm double pulley block with becket, designed for performance sailing on dinghies, keelboats, and sports boats. Part of the trusted Ronstan Series 20, this block features two ball bearing sheaves for smooth, low-friction control plus a becket for easy line termination.

Perfect for control line systems such as vangs, cunninghams, and trimmers, the RF20212 allows efficient routing and secure tie-off in compact rigging setups. With UV-resistant acetal sheaves and 316 stainless steel cheeks, it offers durability, strength, and long-lasting performance in harsh marine environments.

✅ Key Features

• Ronstan RF20212 – Series 20 double block with becket

• Twin 20mm ball bearing sheaves for smooth operation

• Integrated becket for line termination

• UV-stable acetal construction

• 316 stainless steel cheeks for strength and corrosion resistance

• Lightweight, compact, and ideal for small boat rigging

• Suited for vang, outhaul, and cunningham systems

• High-load capable and race-ready performance

Ronstan RF20212 Double ball bearing pulley with Becket 20mm specifications:

• Sheave Ø 20mm
• Max. Rope Ø 6 mm
• Pin Ø 4.0 mm
• M.W.L. 350 kg
• B. L. 700 kg
• Weight 44 g