Harken 57mm Carbo Ratchet


Normally: $93.95

Harken 57mm Carbo Ratchet

Product Details

Harken 57mm Carbo Ratchet Block

Harken #2135

The Harken #2135 57mm Carbo Ratchet Block is a the standard mainsheet block used on small boats like the Sunfish, Laser, and RS Aero. The on / off ratchet ensures that you'll be able to smoothly trim the sails no matter the conditions.


  • On / Off switch operates from both sides
  • Standard Grip: Medium / Light Air
  • 10:1 Holding power


Sheave (mm) 57 mm
Sheave (in) 2 1/4"
Length (mm) 103mm
Length (in) 4 1/16"
Weight (g) 85 g
Weight (oz) 3 oz
Shackle Pin (mm) 5 mm
Shackle Pin (in) 3/16"
Maximum Line (mm) 10 mm
Maximum Line (in) 3/8"
Maximum Working Load (kg) 227 kg
Maximum Working Load (lb) 500 lb
Breaking Load (kg) 907 kg
Breaking Load (lbs) 2000 lbs
Holding Power 10:1