40mm Carbo Blocks

Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's Classic blocks.

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 40 mm Carbo for jib and mainsheet systems on high-performance dinghies and for loaded control lines on small keelboats.

Use for:

• Main/jib sheets
• Mainsheet fine-tune
• Control lines
• Vangs
• Cunninghams
• Outhauls

Specifications:

• Sheave Ø 40 mm | 1-9/16 in
• Length 102 mm | 4 in
• Weight 122 g | 4.3 oz
• Shackle pin Ø 4 mm | 5/32 in
• Maximum line Ø 6 mm | 1/4 in
• Maximum working load 136 kg | 300 lb
• Breaking load 272 kg | 600 lb
• Maximum Working Load and Breaking Load Based On Cam Cleat Strength