Ronstan series 60 Core Block™, Double

Ronstan series 60 Core Block™, Double

21 in stock

The Ronstan Core Block™ Double Block offers an excellent balance of structural strength and low-friction performance. Designed with a universal bearing system, it provides smooth rotation under both static and dynamic loads, making it highly versatile for a wide range of deck applications. Its robust construction ensures exceptional durability even in demanding marine conditions, optimizing line flow in sheet and halyard systems. It is the ideal technical choice for sailors seeking a reliable, high-performance block capable of withstanding continuous loads with minimal mechanical resistance.

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At Saildeck Gear, we specialize in technical rigging, blocks, winches, and deck hardware for boats between 30 and 60 feet. We know that every boat is different: working loads, mast dimensions, the type of maneuver, and how you use your boat—cruising, racing, or charter—all affect what you actually need.

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Tell us which product you’re interested in and which boat you’ll be installing it on, and we’ll prepare a quote tailored to your setup, including technical advice and with no obligation.

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