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© Mike Kern

MKIV Unit 1

MKIV Unit 1

Nothing beats the MKIV Jib Reefing & Furling line for effortless headsail control and great sail shape for optimal speed. With its ability to reef, simply furl and unfurl instead of changing sails to suit conditions, reduce speed, or gain visibility off the bow. Split drum removes for racing. Independent halyard and tack swivels furl sail center before head and tack for improved sail shape when reefed. Precision-extruded, double-groove Air foils for smooth sail handling and fast sail changes. Specially formulated low-stretch black line is abrasion and UV-resistant; standard on units 0, 1, 2. Typical Boat Length 8.3 - 11 m (28' - 36')

Features

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Low-friction efficiency for easy furling and reefing

Multiple rows of Torlon® ball bearings in high-load areas minimize friction. Stacked bearing races evenly distribute radial and thrust loads; drum and halyard swivel turn freely under load.

576
Improved sail shape and boat control

Independent halyard and tack swivels furl sail center before head and tack for improved sail shape when reefed. Lightweight aluminum halyard swivel saves weight aloft to reduce pitching and heeling.

577
Fast hoists, douses, reefs, and sail changes

Precision-extruded, double-groove Air foils for smooth sail handling and fast sail changes. Stainless steel feeder allows fast singlehanded hoist and sail changes.

578
Designed for easy installation

Drum assembly fits over existing turnbuckle allowing easy length adjustment. Harken toggle assembly accepts standard turnbuckle using swage, rod, Norseman, or STA-LOK® terminals.

579
Split drum removes easily for racing

Line guard and spool remove easily for use with full-hoist sails.

580
MKIV Unit 1

Jaw, Jaw Toggle — 12.7mm Pin

MKIV Unit 1

Stud, Jaw Toggle — 15.9mm Pin

MKIV Unit 1

Link Plate Toggle — 12.7mm Pin

MKIV Unit 1

Link Plate Toggle — 15.9mm Pin

MKIV Unit 1

40mm Stanchion-Mount Block

MKIV Unit 1

57mm Ratchet Stanchion-Mount Block

MKIV Unit 1

29mm Outboard Stanchion-Mount Block

MKIV Unit 1

Stanchion-Mount Lead Block Kit

MKIV Unit 1

Unit 1 MKIV Jib Furling System

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F R E E   G R O U N D  S H I P P I N G

for orders over $100!

Valid on orders shipping within the United States

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