75mm Harken Carbo Ratchamatic Block

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75mm Harken Carbo Ratchamatic Block

The Harken 75mm Carbo Ratchamatic® block 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.

Perfect for spinnaker sheets and ropes which need constant adjustment.

Comes with allen key to adjust the block.


  • Sheave Ø (mm) - 75 mm
  • Length (mm) - 137 mm
  • Weight (g) - 238 g
  • Shackle pin Ø (mm) - 6 mm
  • Maximum line Ø (mm) - 12 mm
  • Maximum working load (kg) - 341 kg
  • Breaking load (kg) - 1,361 kg
  • Holding power w/180 degree wrap 50 lb (23 kg) - 15:1

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