Harken - 40mm Carbo Air Blocks


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Harken Carbo AirBlocks

Harken Carbo AirBlocks are 60% Stronger and 30% lighter than the Classic Blocks. Use the Harken 40 mm Carbo Block for jib and mainsheet systems on high-performance dinghies and for loaded control lines on small keelboats.

The nylon-resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Sheaves spin on high-load ball bearings with fitted races for low-friction operation. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

High-Strenghtpivoting lead blocks with cams are used for halyard controls on larger keelboats and as "head knockers" on dinghies and beachcats for sheeting directly rom the boom. Hole spacingand rivet size are the same as Classic models, making upgrades easy. Cam reverses for either up or down cleating.

Use For:
Main/jib sheets
Mainsheet fine-tune
Control lines