Ball bearings between center hub and deck bearing, and main shaft reduce friction; drum and halyard swivel turn freely under load.

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Ball bearings between center hub and deck bearing, and main shaft reduce friction; drum and halyard swivel turn freely under load.
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.
Precision-extruded, double-groove Air foils for smooth sail handling and fast sail changes. Stainless steel feeder allows fast singlehanded hoist and sail changes.
Torque tube fits over existing turnbuckle allowing easy length adjustment. Hub assembly toggle accepts standard turnbuckle using swage, rod, Norseman, or STA-LOK® terminals.
Outside drum diameter is small.