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Limited Edition Ronstan Series 30 Ball Bearing Block Single Becket Option Lashing [rf35109hl] Check It Out [ChJ21bRX]

$21.99 $70.99 -69%

Ronstan Series 30 Ball Bearing Block The Ronstan Series 30 Ball Bearing Block is a premium choice for sailors seeking unparalleled performance and durability. This innovative block boasts an impressive strength-to-weight ratio, thanks to its all-comp

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Limited Edition Ronstan Series 30 Ball Bearing Block Single Becket Option Lashing [rf35109hl] Check It Out [ChJ21bRX]

Ronstan Series 30 Ball Bearing Block

The Ronstan Series 30 Ball Bearing Block is a premium choice for sailors seeking unparalleled performance and durability. This innovative block boasts an impressive strength-to-weight ratio, thanks to its all-composite reinforced polymer construction and multiple attachment options. Its precision engineering ensures minimal friction, while the use of fibre-reinforced composites in the block head, cleat arms, and beckets contributes to its reduced weight. With its robust design, the Series 30 Ball Bearing Block is a must-have for any sailor looking to enhance their sailing experience.

Advanced Technology and Specifications

The Series 30 Ball Bearing Block is powered by Ronstan's proven 2-stage bearing system, which incorporates high compression grade Acetal ball bearings and a secondary full-contact bearing for optimal performance across the full working load range. The sheave and bearing system are supported by a fibre-reinforced load frame, designed using advanced stress analysis methods for maximum strength and reliability. The use of Dyneema® Link, made from high-spec SK75 fibre, ensures a connection that is 10 times stronger and lighter than steel, providing a secure and efficient connection from the block to the load point. This block is also compatible with Dyneema®/Spectra® lines, carbon laminate connection points, and webbing, making it a versatile choice for various sailing applications.

Practical Applications and Benefits

The Ronstan Series 30 Ball Bearing Block is designed for a wide range of applications, from mainsheet systems and spinnaker sheets on dinghies to halyard, vang, and backstay applications on boats up to 5M (16'). Its secure, versatile, and secure attachment options, including Dyneema® Links and shackles, make it an ideal choice for control line applications on larger yachts. With its low profile and compact design, the Series 30 Ball Bearing Block offers a sleek and efficient solution for any sailing need. The ultra-low profile thru-sheave becket, self-lubricating Nylatron® sheave, and full contact bearing for high dynamic loads further enhance its performance and longevity. Upgrade your sailing equipment with the Ronstan Series 30 Ball Bearing Block and experience the difference in quality and efficiency.

What Our Customers Say

January 28, 2026

Absolutely no complaints!

A great product at a very, very, very great price.

- Aneirin Q..

January 28, 2026

Absolutely no complaints!

This is a really good product and its great purchase.

- Haf C..

January 28, 2026

Absolutely no complaints!

A great item. It is well worth all of its money.

- Lleucu D..

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