Harken 57mm Ratchamatic Block - w/Swivel, 2x Grip

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.

2x grip: big breeze/steady: 20:1 holding power.

Specifications

• Sheave Ø (mm): 57 mm
• Sheave Ø (in): 2 1/4 in
• Length (mm): 103 mm
• Length (in): 4 1/16 in
• Weight (g): 104 g
• Weight (oz): 3.7 oz
• Shackle pin Ø (mm): 5 mm
• Shackle pin Ø (in): 3/16 in
• Maximum line Ø (mm): 10 mm
• Maximum line Ø (in): 3/8 in
• Maximum working load (kg): 227 kg
• Maximum working load (lb): 500 lb
• Breaking load (kg): 907 kg
• Breaking load (lb): 2000 lb
• Holding power: 20:1