HARKEN 57mm Double Carbo Sailboat Block With Becket - Premium Sailing Hardware

Serious sailors, this Harken block is premium sailing hardware at its best! The 57mm double carbo block with becket features lightweight, strong fiber-reinforced composite construction that can handle the demands of serious sailing. With a maximum working load of 1584 pounds and breaking load of 3300 pounds, this block is built for performance and reliability. The unique load-sensing design automatically shifts between ratchet and light air modes - it rolls freely under low loads but engages ratchet assist when the load increases, with adjustable engagement to match your strength and sailing style. The eight-sided, hardkote-anodized aluminum sheave reduces friction and wear, while the UV-stabilized components stand up to sun exposure. Perfect for main sheets, jib sheets, and asymmetric spinnakers, this block represents Harken's commitment to quality and innovation. The ball bearing system ensures smooth operation, and the included shackle has a 6mm pin diameter. Designed for lines up to 10mm diameter, this block combines lightweight construction with serious strength. Whether you're racing or cruising, upgrading to Harken hardware makes a noticeable difference in performance and reliability. The attention to detail is evident in every aspect - from the materials to the engineering. If you're tired of sticky, unreliable blocks or just want to upgrade your boat's performance, this Harken block delivers professional-grade quality that serious sailors trust.