75mm Ratchet Block — Swivel, 2x Grip

Harken 75mm Ratchet Block — Swivel, 2x Grip

The Harken 75mm Carbo Power3 Ratchet Block with Swivel and 2x Grip is engineered for small one-design racing sailors who demand precise control over their mainsheet system. As part of the Power3 family, this block offers three distinct holding-power options, enabling sailors to fine-tune their setup in tandem with their purchase system to achieve the ideal balance of power, responsiveness, and grip for any wind and sea condition.

The 2x grip setting is designed for breezy conditions and gusty puffs, delivering 30:1 holding power that significantly reduces hand fatigue on the water. The on/off ratchet switch is accessible from both sides of the block, making it easy to adjust on the fly without interrupting your racing focus. The swivel top allows the block to align freely with the load, reducing friction and wear on the line.

Built with Harken's Carbo composite construction and precision ball bearings, the 75mm sheave accommodates lines up to 12mm in diameter. The shackle pin measures 6mm for secure attachment to deck hardware. With a maximum working load of 341 kg (750 lb) and a breaking load of 1,361 kg (3,000 lb), this block is robust enough for demanding racing conditions while remaining lightweight at just 227 g (8 oz). It is noted as a suitable mainsheet block for the Melges A, E, C, MC, and X class boats.

Key Features

• Power3 system with three holding-power options for versatile wind condition management
• 2x grip mode: optimized for breeze-on/puffs with 30:1 holding power
• On/off switch operable from both sides
• Swivel top for free alignment with load
• 75mm Carbo composite sheave with ball bearings
• Accepts lines up to 12mm diameter
• Maximum working load: 341 kg (750 lb)
• Breaking load: 1,361 kg (3,000 lb)
• Lightweight construction: 227 g (8 oz)
• Compatible with Melges A, E, C, MC, and X class boats