Harken 57 mm Ratchamatic® Block — Swivel, 1.5x Grip

Harken
$168.59 (Ex. Tax)
$185.45 (Inc. Tax)
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Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness and grip. 

The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. 

1.5x grip: breeze–on/puffs; 15:1 holding power.

 

Sheave Ø (mm)57 mm
Length (mm)103 mm
Weight (g)104 g
Shackle pin Ø (mm)5 mm
Maximum line Ø (mm)10 mm
Maximum working load (kg)227 kg
Breaking load (kg)907 kg
Holding power15:1