Harken 57mm High Load Foot, Magic Block

Engineered for peak performance, the Harken 57mm High Load Foot Magic Block is part of Harken’s elite Black Magic® AirBlock® series. With a sleek, streamlined design and unmatched strength-to-weight ratio, this block is built for dynamic high-load sailing systems such as mainsheets, runners, halyards, and spinnaker controls. The use of free-rolling Torlon® roller bearings ensures ultra-smooth operation, even under intense pressure. Maintenance is simple, thanks to a user-friendly design with minimal parts, no loose balls or rollers to worry about. Unlike riveted blocks, this model uses fasteners for quick and easy disassembly using just a single hex wrench.

Key Features:

Pulley Diameter: 57mm for handling high-load lines

Bearings: High-load Torlon® roller bearings for superior strength-to-weight ratio

Material: Lightweight, durable design for performance sailing

Application: Perfect for mainsheets, halyards, runners, and spinnaker systems

Maintenance: Simple to clean and service, minimal components, no loose parts

Disassembly: Quick-release fasteners (not riveted); opens with one hex wrench

Design: Sleek Black Magic® AirBlock® styling

Reliability: Trusted Harken engineering for competitive or recreational sailing