Harken 2153 57mm Carbo T2 Double Block - Soft-Attach

Harken 57mm T2™ Soft-Attach Double Block is an ultra-lightweight, high-performance solution designed for modern sailing systems where strength, efficiency and minimal weight are critical. With no metal shackles or rivets, this is one of the lightest soft-attach blocks in the Harken range.

The T2™ design allows the block to be tied, spliced or lashed directly to almost any attachment point, offering maximum rigging flexibility. The integrated composite line guides in the double block head keep the lashing securely positioned at the outer edges, preventing capsizing and ensuring consistent alignment under load.

Featuring composite sheaves running on Delrin® ball bearings with curved races, this block delivers smooth, low-friction performance. The attachment line is routed through both the block head and sheave, reducing loads on the sideplates while acting as a built-in safety backup.

Ideal for traveller controls, mainsheets, vangs, cascades and bridles, this block is perfectly suited to high-performance dinghies, sportboats and lightweight rigging systems. Supplied with Spectra® line for immediate use.

Specifications

Length: 79 mm / 3 1/16 in

Weight: 107.5 g / 3.8 oz

Sheave Diameter: 57 mm / 2 1/4 in

Maximum Line Diameter: 11 mm / 7/16 in

Maximum Working Load: 490 kg / 1080 lb

Breaking Load: 1451 kg / 3200 lb

Key Features

• Soft-attach design for tying, splicing or lashing to almost any fixing point
• No metal shackles or rivets for ultra-lightweight performance
• Composite sheaves with Delrin® ball bearings for smooth, low-friction operation
• Integrated line guides prevent capsizing and maintain alignment
• Attachment line runs through block head and sheave for reduced sideplate load and added safety
• High strength-to-weight ratio for demanding applications
• Ideal for traveller controls, mainsheets, vangs and cascades
• Suitable for dinghies, sportboats and performance sailing systems
• Supplied with Spectra® lashing line
• Reliable performance for racing and advanced sailing setups