Ronstan RF20141 20mm Stand-Up Pulley | Series 20 Sailing Block

The Ronstan RF20141 is a compact and efficient 20mm stand-up pulley block from the trusted Series 20 range, engineered for deck-mounted applications where space and performance matter. Featuring a ball bearing acetal sheave and 316 stainless steel cheeks, this block delivers smooth, low-friction operation and exceptional durability.

Ideal for dinghies, sports boats, and small keelboats, the stand-up design keeps the block upright for reliable line alignment. It’s perfect for control lines, vangs, and trimmer systems requiring a low-profile block that won’t flop or twist under load.

✅ Key Features

• Ronstan RF20141 – Series 20 stand-up block

• 20mm ball bearing sheave for low friction

• UV-resistant acetal construction

• 316 stainless steel cheeks for strength and corrosion resistance

• Stand-up base for deck or spar mounting

• Maintains upright position for clean line handling

• Ideal for vang, traveller, and trimming systems

• Built for high-performance dinghy and keelboat sailing

Ronstan RF20141 Stand-up ball bearing pulley 20mm specifications:

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