
Harken Harken Auto Release Racing Mini (CL257/R)
The Harken Auto Release Racing Mini (CL257/R) features an innovative auto-release function for competitive sailing, ensuring quick and reliable line management. Perfect for optimal performance in high-speed racing scenarios, this durable block withstands harsh marine environments.
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Pickup currently unavailable at Marine Chandlery: North Shields

Harken Harken Auto Release Racing Mini (CL257/R)
Marine Chandlery: North Shields
Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom

The Harken Auto Release Racing Mini (CL257/R) features an innovative auto-release function for competitive sailing, ensuring quick and reliable line management. Perfect for optimal performance in high-speed racing scenarios, this durable block withstands harsh marine environments.
The Harken Auto Release Racing Mini (CL257/R) features an innovative auto-release function for competitive sailing, ensuring quick and reliable line management. Perfect for optimal performance in high-speed racing scenarios, this durable block withstands harsh marine environments.
Description
The Harken Auto Release Racing Mini (CL257/R) is a precision-engineered marine product designed to enhance performance and safety in competitive sailing. This compact cleat is specifically built for racing applications and is constructed from high-strength, lightweight materials, ensuring durability and reliability in demanding marine environments. Key features of the Harken CL257/R include its auto-release mechanism, which provides instantaneous line release under load, allowing for seamless adjustments during intense sailing maneuvers. The cleat’s unique geometry enables secure holding of a variety of line sizes, accommodating both standard and performance-oriented cordage. With a maximum working load capacity tailored for racing, skippers can depend on this cleat to withstand the stresses of high-speed sailing while reducing the risk of accidental snags. The Harken Auto Release Racing Mini is ideal for applications such as quick adjustments on downhauls, outhauls, and control lines on racing dinghies and larger keelboats. It is particularly beneficial in scenarios where quick line release is critical, improving overall sail trim and handling during races. Marine professionals and avid sailors will appreciate the CL257/R’s minimal weight combined with its robust construction, which helps maintain optimal sail performance without compromising vessel balance. Additionally, its user-friendly design supports efficient rigging and de-rigging processes, making it a preferred choice among competitive sailors seeking reliable, high-performance equipment.
Specification
| Specification | Details |
|---|---|
| Model | Harken Auto Release Racing Mini (CL257/R) |
| Weight | 0.2 kg (0.44 lbs) |
| Maximum Working Load | 500 kg (1100 lbs) |
| Breaking Load | 1500 kg (3300 lbs) |
| Sheave Diameter | 25 mm (1 in) |
| Line Size | 6-8 mm (1/4-5/16 in) |
| Material | Aluminum, stainless steel |
| Finish | Anodized |
| Type | Auto Release Block |
Delivery information
Standard delivery: 3-5 working days
Express delivery: 1-2 working days
Free delivery on orders over £100








