Harken 57mm Ratchamatic® Flip-Flop Block - Small Boat Block with Adjustable Ratchet Mechanism for Enhanced Holding Power | Brand Harken

Brand: Harken | Product Code: HK2144

NEW PRODUCT - Available!


Chat on WhatsApp on cell +39 338 380 3599


Note: The images of some items may be indicative and refer to the product range or different colors. For further details or confirmations, contact us.



Product Description

Harken 57mm Ratchamatic® Flip-Flop Block is designed specifically for small boats, providing an adjustable ratchet mechanism that enhances holding power significantly. This innovative bozzello features a unique flip-flop design that allows it to pivot around the line axis, ensuring that the line remains close to the deck, which is crucial for optimizing performance and minimizing drag.

The hinged construction of the Harken Flip-Flop blocks permits various lead angles, allowing sailors to customize their setup based on specific sailing needs and conditions. The Ratchamatic technology means these bozzelli roll freely in both directions under low loads, which is ideal for ease of handling. As the load increases, the ratchet mechanism automatically engages, providing a holding power of up to 15:1. This feature gives sailors the control they need during demanding maneuvers.

One of the standout aspects of the Harken 57mm Ratchamatic® Flip-Flop Block is the adjustable ratchet engagement. Sailors can modify the resistance to better match their strength, sailing style, or the operational requirements of their system. This flexibility makes the bozzello suitable for a variety of applications and enhances overall user experience.

Technical Specifications:

  • Diameter: 57 mm
  • Holding Power: Up to 15:1
  • Construction: Hinged for adjustable lead angles
  • Mechanism: Ratchamatic for automatic engagement with increased load
  • Applications: Ideal for small boats and various sailing conditions
  • Weight: Lightweight design for ease of use

Technical Specifications

Code HK2144
Brand Harken
Price for


Shipping and Payment Information

  • Shipping via FedEx courier with tracking included
  • Product origin: Italy
  • Accepted payment methods: Credit Card, PayPal, Bank Transfer
  • For quantities greater than those purchasable on Ebay, contact us indicating the quantity you would like to purchase, or Chat on WhatsApp on cell +39 338 380 3599


More information on our website

Chat on WhatsApp on cell +39 338 380 3599



The information provided is subject to change without notice.

© Oltrevela.com - All rights reserved.

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Harken 57mm Ratchamatic® Flip-Flop Block - Small Boat Block with Adjustable Ratchet Mechanism for Enhanced Holding Power | Brand Harken

Brand: Harken | Product Code: HK2144

NEW PRODUCT - Available!


Chat on WhatsApp on cell +39 338 380 3599


Note: The images of some items may be indicative and refer to the product range or different colors. For further details or confirmations, contact us.



Product Description

Harken 57mm Ratchamatic® Flip-Flop Block is designed specifically for small boats, providing an adjustable ratchet mechanism that enhances holding power significantly. This innovative bozzello features a unique flip-flop design that allows it to pivot around the line axis, ensuring that the line remains close to the deck, which is crucial for optimizing performance and minimizing drag.

The hinged construction of the Harken Flip-Flop blocks permits various lead angles, allowing sailors to customize their setup based on specific sailing needs and conditions. The Ratchamatic technology means these bozzelli roll freely in both directions under low loads, which is ideal for ease of handling. As the load increases, the ratchet mechanism automatically engages, providing a holding power of up to 15:1. This feature gives sailors the control they need during demanding maneuvers.

One of the standout aspects of the Harken 57mm Ratchamatic® Flip-Flop Block is the adjustable ratchet engagement. Sailors can modify the resistance to better match their strength, sailing style, or the operational requirements of their system. This flexibility makes the bozzello suitable for a variety of applications and enhances overall user experience.

Technical Specifications:

  • Diameter: 57 mm
  • Holding Power: Up to 15:1
  • Construction: Hinged for adjustable lead angles
  • Mechanism: Ratchamatic for automatic engagement with increased load
  • Applications: Ideal for small boats and various sailing conditions
  • Weight: Lightweight design for ease of use

Technical Specifications

Code HK2144
Brand Harken
Price for


Shipping and Payment Information

  • Shipping via FedEx courier with tracking included
  • Product origin: Italy
  • Accepted payment methods: Credit Card, PayPal, Bank Transfer
  • For quantities greater than those purchasable on Ebay, contact us indicating the quantity you would like to purchase, or Chat on WhatsApp on cell +39 338 380 3599


More information on our website

Chat on WhatsApp on cell +39 338 380 3599



The information provided is subject to change without notice.

© Oltrevela.com - All rights reserved.

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Harken 57mm Ratchamatic® Bloc à Tongs - Petit Bloc Bateau avec acheter R...
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