Harken Carbo Ratchet Blocks

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.  Nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Machined aluminum sheaves are Hardkote anodized for strength and corrosion resistance. Eight facets hold line securely. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

The 57 mm and 75 mm switchable ratchets provide precise on/off control with accessible, easy-to-operate on/off switches on both sides of the block.  For the ultimate system, mount a switchable ratchet in the cockpit and a boom-mounted Ratchamatic® directly above for double holding power in heavy air and a free-running mainsheet when it’s light. The 75 mm provides up to 15:1 holding power; the 57 mm 10:1.

Use for:

  • Main/jib/spinnaker sheets

  • Mainsheet fine-tune

  • Traveler controls

  • Genoa leads

  • Foreguy

  • Vangs

Harken 40mm Carbo Ratchet Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and..
Harken 40mm Carbo Ratchet Block w/Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and..
Harken 40mm Carbo Ratchet Cheek Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and..
Harken 40mm Carbo Ratchet w/Cam Cleat
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 40mm Carbo Ratchet w/Cam Cleat & Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 40mm Triple Carbo Ratchet w/Cam Cleat
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 40mm Triple Carbo Ratchet w/Cam Cleat & Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 40mm Triple Carbo Ratchet w/Cam, Becket & 29mm Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Carbo Ratchet Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Carbo Ratchet Block w/Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Carbo Ratchet Block w/Cam Cleat
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Carbo Ratchet Cheek Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Carbo Ratchet w/Cam & Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Triple Carbo Ratchet w/Cam & Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 57mm Triple Carbo Ratchet w/Cam Cleat
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
Harken 75mm Carbo Ratchet Block
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and c..
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