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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 our Classic blocks. Use the 40 mm Carbo 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.
Use for:
Main/jib sheets
Mainsheet fine-tune
Control lines
Vangs
Cunninghams
Outhauls
Specifications:
Sheave Ø (mm) - 40 mm
Length (mm) - 75 mm
Weight (g) - 44 g
Maximum line Ø (mm) - 10 mm
Maximum working load (kg) - 220 kg
Breaking load (kg) - 735 kg