Harken 20 Self-Tailing Radial Winch for Sailors - Precise One-Handed Control, Durable Aluminum

The Harken 20 Self-Tailing Radial Winch is built for sailors who demand precise, reliable sail control without getting in the way of handling the deck. With a purpose‑driven design and a focus on grip, efficiency, and durability, this winch helps you streamline both routine adjustments and heavy weather maneuvers.

Why the Radial Drum Design matters

The gripping surface on the radial winch drum is tailored to each winch size and drum material. Instead of using abrasive textures, it features diagonal ribs that optimize grip while markedly reducing line wear. That means fewer frayed strands after long passages and more consistent control when you’re trimming right up to the tack or easing out under load.

Self-Tailing power, solo‑sailor friendly

The built‑in self‑tailing mechanism means one crew member can manage both halyard and mainsail adjustments with confident, one‑handed operation. Trim, raise, or reef without needing a second pair of hands, keeping your deck streamlined and your sail shape dialed in, even when you’re sailing single‑handed or with a light crew.

Strong, lightweight build for real boats

• Material: Aluminum construction for corrosion resistance and durable performance on deck or in exposed locations.
• Drum size: 73 mm diameter drum with a 61 mm line entry height for flexible rope and cable accommodation.
• Overall dimensions: Base 137 mm diameter, height 148 mm, weight 2.4 kg — compact enough for performance boats yet robust for cruising.
• Line compatibility: Works with line diameters from 6 mm to 12 mm, covering a wide range of halyards and sheets.
• Gear and power: Gear ratio 2.76:1; Power ratio 19.20:1 — translating manual effort into smooth, controlled sail handling.
• Mounting and fit: Bolt circle 110 mm with five mounting holes for solid, dependable installation.

Practical use cases that reveal real value

Single-handed cruising or racing with a light crew benefits immediately from the self‑holding control and intuitive operation. Use this winch to:

• Trim genoa or main quickly when shifting wind shifts your sail shape, without a second crew member.
• Raise or reef sails under load, maintaining a steady hand on the sheet and ensuring clean sail balance.
• Manage heavy mainsails in gusty conditions by maintaining consistent tension and preventing line wear over time.
• Maintain a clean deck setup during docking or close-quarters maneuvers with efficient sail control.

Why this winch stands out from other radial designs

Unlike generic textured drums, the diagonal rib pattern on the radial drum is purpose-built to maximize grip while minimizing line wear. The combination of a compact 73 mm drum, a stable 110 mm mounting circle, and a low‑friction self‑tailing mechanism translates to precise control with less effort. It’s a thoughtful solution for boats where every ounce of efficiency matters, from coastal day sails to demanding offshore passages.

Specifications at a glance

• Product: Harken 20 Self-Tailing Radial Winch
• Drum diameter: 73 mm
• Base diameter: 137 mm
• Height: 148 mm
• Weight: 2.4 kg
• Line entry height: 61 mm
• Line range: 6–12 mm
• Mounting: Five fasteners on a 110 mm bolt circle
• Gear ratio: 2.76:1
• Power ratio: 19.20:1
• Configuration: Self-tailing
• Material: Aluminum
• Limitations: Manual operation

Limited stock — direct shipment from our local supplier. Product No. H15STAF. If you’re optimizing a sail plan with a single hand or a light crew, the Harken 20 Self-Tailing Radial Winch brings dependable control, reduced line wear, and intuitive operation to your cockpit—and it’s ready to ship from our warehouse today.