Harken 75mm Ratchet Block — Swivel, 1.5x Grip

Harken 75mm Ratchet Block — Swivel, 1.5x Grip

The Harken 75mm Ratchet Block with Swivel and 1.5x Grip is a high-performance Carbo Air block engineered for competitive small one-design racing. Part of the Power3 ratchet block series, it gives sailors three distinct holding-power options to manage a wide range of wind and sea conditions, letting them dial in the perfect combination of grip, power, and responsiveness in tandem with their purchase system.

The block's on/off ratchet switch is conveniently accessible from both sides, making adjustments quick and intuitive during fast-paced racing situations. At the 1.5x grip setting, the block is tuned for breeze-on sailing and puffs, delivering 22:1 holding power to reduce hand fatigue on loaded sheets. The large 75mm Carbo composite sheave runs smoothly over lines up to 12mm in diameter, while the swivel attachment allows the block to orient freely for optimal lead angles.

Built to Harken's exacting standards, the block offers a maximum working load of 341 kg (750 lb) and a breaking load of 1,361 kg (3,000 lb), making it more than capable for the demands of one-design racing. At just 227 g (8 oz) and 137 mm in overall length, it keeps weight and windage to a minimum. The 6mm shackle pin provides a secure and reliable attachment to deck fittings or strops.

Key Features

• Power3 switchable ratchet system with three holding-power options
• 1.5x grip setting optimized for breeze-on conditions and puffs
• 22:1 holding power reduces sheet load on the sailor's hands
• On/off switch operates from both sides of the block
• Swivel allows free orientation for optimal lead angles
• 75mm Carbo composite sheave for smooth, low-friction line handling
• Accepts lines up to 12mm (7/16 in) diameter
• Maximum working load: 341 kg (750 lb)
• Breaking load: 1,361 kg (3,000 lb)
• Lightweight construction: 227 g (8 oz)
• Overall length: 137 mm (5 3/8 in)
• 6mm shackle pin diameter