Allen 16mm Cheek Block – AL-4181

The Allen 16mm Cheek Block is a compact, high-performance sailing block designed for dinghies, small craft, control lines, and lightweight rigging applications. Built with durable 316 stainless steel cheeks and a precision plain bearing system, this block delivers smooth and reliable operation while maintaining an exceptionally low weight.

Part of Allen’s popular lightweight block range, it is available with either brass or acetal sheaves and is designed to handle a variety of sailing and marine applications. The range includes 16mm, 25mm, and 38mm sheave sizes, with multiple configurations available to suit different rigging requirements.

Ideal for use on control lines, outhauls, Cunningham’s, and other low-friction systems where weight reduction and durability are essential.

Key Features

• Lightweight plain bearing cheek block
• Durable 316 stainless steel side cheeks
• Available with brass or acetal sheave options
• Smooth and efficient line handling
• Suitable for dinghies, small boats, and performance sailing applications
• Part of the Allen 16mm lightweight block range

Specifications

• Sheave Diameter: 16mm
• Length: 30mm
• Suitable Line Diameter: 2–5mm
• Shackle Pin Diameter: 4mm
• Breaking Load: 275kg
• Weight: 6g

Whether you’re upgrading your dinghy hardware or building a lightweight control system, the Allen 16mm Cheek Block offers dependable performance, corrosion resistance, and minimal weight for efficient sail handling.