Harken 57mm Carbo 5-Sheave Block
These smooth-running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in a size and style to fit any system: singles, doubles, triples, quads, and quints; ratchets and fiddles; soft and hard attach. Perfect for main, jib and spinnaker sheets on dinghies and sportboats; control lines on boats of all sizes.
Lightweight, strong and reliable fiber-reinforced composite construction.
Ball bearings, sheave, and sideplates are UV-stabilized.
- Sheave Ø: 57 mm | 2-1/4”
- Length: 121 mm | 4-3/4”
- Weight: 448 g | 15.8 oz
- Shackle pin Ø: 6 mm
- Maximum line Ø: 10 mm | 3/8”
- Maximum working load: 1080 kg | 2380 lb
- Breaking load: 2270 kg | 5000 lb