Upgrade your sailing experience with the Lewmar 40AST two-speed self-tailing aluminum winch, a powerhouse designed for serious sailors who demand precision and power on the water. This winch stands out with its innovative Wavespring self-tailer jaws, which deliver a gentle yet secure grip on ropes—from modern skinny Dyneema lines to classic thicker Dacron. The self-adjusting spring mechanism ensures flawless performance across varying rope diameters, while the sleek feeder arm eliminates snags for smooth, uninterrupted operation every time you trim sheets or hoist sails.

Why Sailors Trust the Lewmar 40AST

Crafted from lightweight aluminum, this winch tips the scales at just 10.7 pounds, making it ideal for racers and cruisers alike who want to shed weight without sacrificing strength. The two-speed design gives you versatility: flick to first gear for rapid line retrieval during maneuvers, then shift to second for muscle when battling heavy loads like a spinnaker in a blow. Mariners rave about its durability in harsh marine environments, backed by Lewmar's reputation for engineering winches that endure years of saltwater abuse.

Key Features That Set It Apart

• Wavespring Self-Tailer: Wave-shaped jaws provide even pressure distribution, protecting rope fibers while locking in securely—no slippage under tension.
• Low-Friction Feeder Arm: Guides lines onto the drum with zero drag, preventing jams even in rough seas.
• Two-Speed Operation: Seamless gear shift for speed (1.9:1 ratio) or power (5.8:1 ratio), with impressive power ratios of 13.2:1 and 40.2:1.
• Versatile Line Handling: Perfect for ropes from 5/16 to 1/2 inch, adapting to your rigging setup effortlessly.
• Corrosion-Resistant Aluminum: Anodized finish fights off the elements, keeping it looking sharp season after season.

Technical Specifications at a Glance

Pro Installation Tips for Peak Performance

Mounting is straightforward with five M6 (1/4-inch) countersunk head screws on a 121mm (4 3/4-inch) PCD bolt circle. For optimal rope flow, position the winch so the line approaches the drum at a 5-10 degree angle relative to the base. If your deck layout doesn't allow this naturally, grab a base wedge to fine-tune the angle—it's a small tweak that prevents uneven wear and boosts efficiency. Always torque fasteners to spec and bed them properly to resist the constant vibration of offshore passages.

Real-World Usage: From Racing to Cruising

On a J/105 racer, this winch shines during tacks, letting crew handle genoa sheets with minimal effort. Cruisers appreciate its power for anchoring in 30-knot winds or managing a roller furling main. The self-tailing action frees up hands for other tasks, making single-handing a breeze. Pair it with matching blocks for a seamless deck layout, and you'll notice how it transforms sheet handling from a chore to a joy.

Maintenance Secrets for Longevity

Keep it running like new with simple habits: rinse with fresh water after every sail to flush salt, inspect jaws for wear annually, and lubricate the drum sparingly with marine grease. Avoid over-servicing the Wavespring—it's designed to be low-maintenance. A quick pawl check before each season ensures reliable ratcheting. With proper care, expect decades of service from this workhorse.