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Ronstan RF20202 Series 20 Double Block with 2-Axis Shackle Head

Manufacturer

Ronstan

<h3>About Ronstan – A Legacy Built on the Water</h3><p>Few names in the sailing world carry as much weight as Ronstan. <strong>Founded in 1953</strong> by Ron Allat and Stan Lenepveu, the company began as a small boatbuilding operation in Highett, a suburb of Melbourne, Australia. What started as handcrafting custom yacht fittings for fellow sailors at the nearby Black Rock Yacht Club steadily grew into one of the most respected sailboat hardware manufacturers on the planet. The brand name itself is a nod to its founders — Ron and Stan — whose passion for sailing and precision craftsmanship shaped the company's DNA from day one.</p><p>Today, <strong>Ronstan International</strong> is a globally recognised manufacturer and supplier of sailboat hardware, rigging components, winches, sailing gear, and accessories, with its head office remaining in Braeside, Victoria, Australia. The company has established manufacturing facilities in Australia, Denmark, and Indonesia, along with sales offices in the United States, and distributes products to sailors in over 40 countries around the world. In November 2023, Ronstan joined <strong>Groupe Wichard</strong>, aligning with an industry leader whose portfolio spans more than ten world-renowned brands in the sailing and safety markets — a move that further strengthens Ronstan's global reach and product offering.</p><h3>Engineered for Every Sailor, Proven at the Highest Levels</h3><p>Ronstan's reputation spans the full spectrum of sailing — from first-time dinghy sailors to elite competitors at the America's Cup and Olympic Games. The brand serves as the official supplier to the Australian Sailing Team, and Ronstan hardware has appeared aboard medal-winning boats across multiple Olympic campaigns. That pedigree at the pinnacle of racing directly fuels the innovation available to everyday sailors: the demanding performance requirements of top-tier competition have driven many of the technical breakthroughs found throughout Ronstan's broader product range.</p><p>The company's catalog encompasses well over 2,000 products, including pulley blocks, traveller systems, furlers, rope cleats, stainless steel fittings, shackles, snap shackles, and winches. Whether you're outfitting a small racing dinghy, a family cruiser, or an offshore race yacht, Ronstan offers hardware designed and tested to perform in real-world conditions. Their in-house capabilities span design, engineering, precision injection moulding, CNC machining, metal pressing, and assembly — all of which contribute to the consistent quality sailors have come to expect from the brand.</p><h3>Top Ronstan Product Categories</h3><p>Among Ronstan's most popular product lines are their <a href="/11561-ronstan-tiller-extensions-accessories-202641">Tiller Extensions &amp; Accessories</a>, which encompass both their renowned carbon fibre and alloy tiller extension ranges. Whether you need a lightweight, rigid fixed-length stick or a telescopic option for adjustable reach, Ronstan's tiller extensions are engineered for decisive helm response and positive grip in all conditions. Complementing these are Ronstan's <a href="/11561-ronstan-tiller-extensions-accessories-201068">Tiller Extension Accessories</a> — including universal joints, retaining clips, and end knobs — that allow sailors to fine-tune their setup or replace worn components with ease.</p><p>Ronstan also produces a well-regarded line of <a href="/11561-ronstan-fairleads-201944">Fairleads</a>, designed to guide lines smoothly across a boat's deck. Available in UV-stabilised nylon and with optional stainless steel liners for added strength and longevity, these practical fittings are a staple of both dinghy and keelboat rigging setups worldwide.</p><h3>Why Choose Ronstan?</h3><ul><li><strong>70+ years of marine hardware expertise</strong> rooted in Australian sailing culture</li><li>Products trusted by Olympic sailors, offshore racers, and cruising sailors alike</li><li>Over 2,000 products covering everything from small dinghy fittings to superyacht systems</li><li>Advanced manufacturing across three international production facilities</li><li>Part of Groupe Wichard, adding complementary product depth and global support</li></ul>

Part Number

RF20202
06/01/2036 4:31 AM
Sale Price

$24.49

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Ronstan RF20202 Series 20 Double Block delivers high-performance ball bearing operation for dinghy and small keelboat sailors who demand precise feedback and efficient line handling. This 20mm double block with 2-axis shackle head features a sophisticated two-stage bearing system that automatically adapts to varying load conditions, ensuring smooth operation whether you're making subtle trim adjustments or managing higher loads.

Innovative Two-Stage Bearing System:

The block's unique design employs acetal ball bearings for efficient operation under moderate loads, while a sliding acetal bearing running on a stainless steel race seamlessly takes over as forces increase. This intelligent system protects the ball bearings from distortion under high loads while maintaining the low friction performance critical for sensitive sail control.

Key Features:

  • 20mm UV-stable acetal sheave optimized for 1/4" (6mm) line
  • Dual-stage bearing system transitions smoothly between moderate and high loads
  • Fiber-reinforced nylon cheeks with 316 stainless steel load straps for strength
  • 2-axis shackle head with low-profile pin prevents line snagging
  • Lightweight construction ideal for hand-held control lines
  • Shackle pin diameter: 1/8"
  • Can be used with or without the included shackle

Applications:

  • Boom vangs and cunninghams
  • Halyard tuning systems
  • Backstay systems for dinghies and small keelboats
  • Any application requiring smooth, efficient line control

Engineered for sailors who need to detect subtle wind changes and sail trim variations, the RF20202 provides the smooth operation and tactile feedback essential for optimal performance on the water.

Products specifications

Type

Double

Diameter

1/4 Inch or 6 mm

Mount Type

Side Shackle

Weight

0.09

Ball Bearings

Stainless Steel

Becket

No Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Non Ratcheting

Safe Working Load

770 Pounds

Sheave Diameter

20 mm

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