Product Description

Carbo AirBlocks® are 60% stronger and 30% lighter than our Classic blocks.

The nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting.

The high-load 57 mm Carbo has a broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, and J/24s, and for mainsheet systems on catamarans.

Use for:

10:1 Mainsheet for Beachcat

Part Number: HSB380

Imperial Metric
Sheave Dia. 2 1/4" 57 mm
Length - -
Weight w/Shackle - -
Shackle Pin Dia. 1/4" 6 mm
Max Line Dia. 7/18" 10 mm
Maximum Working Load 2380 lbs 1080 kg
Breaking Load 5000 lbs 2270 kg
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Harken 57 mm Carbo Quad w/ Becket on Center
Original Price: $ 181.45
Price: $ 145.24

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