Harken 22mm Fiddle Micro Block w/V-Jam

The Harken 22mm Fiddle Micro Block with V-Jam is a compact, low-friction sheave system engineered for precise load control on sailboards, small dinghies, and lightly loaded control lines across vessels of all sizes. Designed by Harken—a leader in marine hardware—this micro block delivers the smooth, efficient line management demanded by sailors and offshore operators working with minimal deck space and tight rigging configurations.

The 22mm sheave paired with the V-Jam mechanism accommodates line up to 6mm (1/4-inch) diameter, supporting a maximum working load of 159 kg (350 lbs) with a breaking strength of 544 kg. At just 57 grams (2 oz), the micro block's lightweight construction minimizes added weight aloft while the low-friction design reduces friction losses—critical for efficiency in racing applications and extended cruising. The 5mm (3/16-inch) shackle pin allows secure attachment to existing rigging, mast fittings, or block systems without modification.

This block suits sailors optimizing jib sheet leads, telltale systems, or outhaul controls where space constraints and weight sensitivity matter. The V-Jam cleat function enables hands-free line management, freeing both hands for steering or other deck operations—a practical advantage during single-handed sailing, offshore passages, or competitive racing environments where crew efficiency directly impacts performance.

Harken micro blocks represent a mature standard in marine hardware, trusted across both racing and cruising fleets for their durability and consistent performance across saltwater environments. The 22mm fiddle configuration balances working load capacity with the compact profile required by modern boat designs and rigging systems that prioritize weight reduction and deck efficiency.