

Harken 40mm Carbo Cheek Block
Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming.
Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's Classic blocks. Use the 40 mm Carbo for jib and main sheet systems on high-performance dinghies and for loaded control lines on small keelboats.
The nylon-resin side plates 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 side plates are UV-stabilized with carbon black for maximum protection.
Sheave Ø: 40 mm
Length: 70 mm
Weight: 34 g
Maximum line Ø: 10 mm
Maximum working load: 220 kg
Breaking load: 735 kg
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