Harken 57mm Ratchet Block
$95.99
Classic 57mm ratchet block with 10:1 holding power. On/off switch, ultra-lightweight, ideal for mainsheets and spinnakers
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Description
Harken 57mm Ratchet Block — Swivel
A favorite among dinghy racers worldwide, this lightweight 57mm Carbo ratchet block delivers reliable 10:1 holding power in light to moderate air. The on/off ratchet switch is easy to operate from either side, giving you full control of mainsheet or spinnaker lines without compromising feel or responsiveness.
✅ Key Features:
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10:1 holding power — perfect for medium/light air control
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Swivel head — reduces twist and enhances handling
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Lightweight — just 85g with a strong Carbo body
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On/off ratchet control — quick to engage or release under pressure
🔧 Specifications:
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Sheave Diameter: 57 mm (2 1/4 in)
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Max Line Diameter: 10 mm (3/8 in)
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Max Working Load: 227 kg (500 lb)
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Breaking Load: 907 kg (2000 lb)
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Length: 103 mm (4 1/16 in)
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Weight: 85 g (3 oz)
Lightweight, efficient, and trusted on racecourses everywhere — this is the go-to ratchet block when you don’t need auto-engagement but still want top-tier control.
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