Sale 57mm Carbo Air® Double Block with Becket
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HARKEN57mm Carbo Air® Double Block with Becket


20% Off - Ends 03/29/20

Regular $98.99

In stock online.
Model # 200068 | Mfg # 2603UPC # 97653076926


57mm Carbo Air® Double Block with Becket

Name Value
Ball Bearings Plastic
Becket Becket
Diameter 7/16 Inch or 11 mm
Direction Any
Integral Cleat No Integral Cleat
Length 5 5/8 Inches
Mount Type Swivel Shackle
Ratchet Non Ratcheting
Safe Working Load 1584 Pounds
Sheave Diameter 57 mm
Type Double
Weight 6.6 Ounces

Product Overview

Harken 57mm Carbo Air® Double block with Becket and grooved races for greater load capacity.

Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The sideplates are UV-stabilized, high-strength resin and designed for small-diameter lines favored by racers. Good for jib and mainsheet systems on high-performance dinghies, and for high-load control lines on small keelboats.

Recipient of both the Dame Award and Sail Magazine’s Freeman-Pittman Award for innovation, this innovative line of blocks turns fiber-reinforced composite construction into a reliable strength-to-weight ratio you can depend on. Companions to the popular Harken Black Magic block line, these small, compact blocks work well with very high working loads for easy trimming.

Key Features 

  • High strength-to-weight ratio block
  • Harken’s most innovative blocks
  • 30% lighter, 60% stronger than equivalent conventional blocks
  • Smaller block for jib and mainsheet systems on high-performance dinghies 
  • Use for high-load control lines on small keelboats
  • Stainless steel swivel shackle
  • Sheave Diameter: 2 1/4" (57 mm)
  • Max. Line Diameter: 3/8" (10 mm)
  • Max. Working Load (MWL): 1584 lb. (720 kg) 
  • Breaking Load: 3300 lb. (1500 kg)
  • Weight: 6.6 oz. (187 g)
  • Length: 5 5/8" (142 mm)


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