The 57 mm diameter lineup of Carbo Air blocks are low-friction, lightweight, strong, reliable and affordable.
Companions to the popular Harken Black Magic block line, these blocks have very high working loads for safe, easy trimming.
Lightweight, strong and reliable fiber-reinforced composite construction sideplates replace stainless steel straps. These densely packed glass fibers reinforce the resin for strength.
These smooth-running powerful performers make trimming easy, no matter how hard the wind blows.
57 mm Carbo Air blocks are of a size and style that will 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, sportboats and small keelboats; and control lines on boats of all sizes.
Ball bearings, sheave, and sideplates are UV-stabilized.
This large 2-1/4" diameter all-composite T2 is the first block with no metal shackles or rivets to corrode. It can accommodate rope up to 7/16" (11 mm) in diameter.
A 57 mm Carbo ratchet can hold loaded lines and control their release. With a 10:1 holding power, it can hold 100 pounds of sheet load with 10 pounds of your effort.
This is an excellent option for 3:1 and 4:1 tackles, and the Air block design eliminates unnecessary material to reduce weight. Match with a 2624 57mm Carbo Fiddle Becket Block with Carbo-Cam for a 4:1 purchase or a 2601 57mm Single & Becket for a 3:1 purchase.
We will answer your question and send you details within 24 hours.
Because our price on this item is lower than the manufacturer's Minimum Advertised Price, the manufacturer doesn't allow us to display our retail price until you place the item in your shopping cart.
Adding the item to your cart allows The Binnacle to show you our price; consistent with our goal of offering the lowest possible price on the widest selection of products.
Adding this product doesn't require you to purchase the item, and you can easily remove it from your cart if you decide not to buy it.
Your feedback has been forwarded to Binnacle.com. Your feedback will be reviewed and considered carefully. If your feedback requires a response, we expect to email you a reply within 24 hours (Monday to Friday).
CATEGORY: Harken 57 mm Carbo Air Blocks 
