Allen 25mm Single Lightweight Block – Stainless Steel Sailing Pulley

The Allen 25mm Single Lightweight Block is a compact, durable sailing pulley designed for smooth, reliable performance in a wide range of sailing and marine applications. Manufactured with high-quality 316 stainless steel cheeks and a precision-engineered sheave, this lightweight block offers excellent strength, corrosion resistance, and long-lasting durability in harsh marine environments.

Ideal for dinghies, yachts, and small craft, the Allen 25mm Single Block is suitable for control lines, rigging systems, and other low-friction applications. Its compact design makes it an excellent choice where space and weight are important without compromising performance.

Available as part of Allen’s lightweight block range, which includes 16mm, 25mm, and 38mm sheave sizes with a variety of configurations to suit different rigging requirements.

Key Features

• Lightweight single sailing block
• High-quality 316 stainless steel cheeks for excellent corrosion resistance
• Precision-engineered sheave for smooth, efficient operation
• Compact and durable design
• Suitable for dinghies, yachts, and other small sailing craft
• Ideal for control lines and general rigging applications
• Designed for reliable performance in marine environments

Product Specifications

• Brand: Allen
• Product Type: Single Lightweight Block
• Sheave Diameter: 25mm
• Overall Length: 41mm
• Suitable Line Diameter: 4–8mm
• Breaking Load: 400kg
• Cheek Material: 316 Stainless Steel
• Sheave Material: Brass or Acetal (depending on model)

Ideal For

• Dinghy sailing
• Yacht rigging
• Control lines
• Running rigging
• Marine and watersports applications

Why Choose the Allen 25mm Single Lightweight Block?

Designed for strength, efficiency, and reliability, the Allen 25mm Single Lightweight Block delivers smooth operation and excellent corrosion resistance. Its compact size and lightweight construction make it a dependable choice for sailors looking to optimise their rigging with high-quality marine hardware.