Harken 57mm Carbo T2 Block – 2152

The Harken 57mm Carbo T2 Block 2152 (Soft-Attach Pulley) is a lightweight, high-performance sailing block designed for dinghies, sportboats, and advanced marine rigging systems. Built with Harken’s ultra-light Carbo T2 design, it delivers smooth, efficient line handling while reducing overall system weight.

This soft-attach pulley features a reinforced composite construction with a 57mm sheave that runs freely on Delrin® ball bearings with curved bearing races. This low-friction system ensures fast trimming, smooth release, and reliable load distribution, even under high sailing loads. The open-frame Carbo design removes unnecessary material to minimise weight while maintaining strength and durability in demanding marine environments.

With no metal shackles or rivets, the Harken T2 2152 is one of the lightest soft-attach pulley blocks in Harken’s range. It can be lashed, spliced, or tied directly through the load-bearing centre, reducing side plate loads and providing an additional safety backup within the system.

Ideal for traveller controls, mainsheets, vangs, cascades, bridles, and other lightweight control applications, this sailing block is engineered for performance sailing where efficiency and low weight are critical.

Supplied with a length of Spectra® line, the Harken 57mm Carbo T2 block is ready for a wide range of rigging setups.

Features:

• Ultra-light soft-attach sailing block design
• 57mm composite sheave with Delrin® ball bearings
• Curved bearing races for smooth, low-friction performance
• Reinforced Carbo composite construction for strength and durability
• Can be lashed, spliced, or tied through the load-bearing centre
• No metal shackles or rivets for reduced weight
• Load routed through centre reduces side plate stress and adds safety backup
• UV-stabilised materials for long-lasting marine performance
• Supplied with Spectra® attachment line
• Suitable for mainsheets, traveller systems, vangs, cascades, bridles, and control lines

Specifications:

• Model: Harken 2152 Carbo T2 Soft-Attach Block
• Sheave Diameter: 57mm
• Length: 79mm
• Weight: 59g
• Maximum Rope Size: 11mm
• Maximum Working Load: 359kg
• Breaking Load: 1080kg

The Harken 57mm Carbo T2 Block 2152 delivers ultra-light strength, smooth trimming performance, and reliable durability for modern sailing and high-performance rigging systems.