Harken Carbo Ratchamatic 57 mm single block 227 kg

This Harken Carbo Ratchamatic 57 mm single block is an automatic, load-sensing ratchet block for effective line control while sailing.

The block spins freely in both directions at low loads and automatically engages the ratchet function as the load increases. This provides smooth handling of unloaded lines and extra holding power when needed.

The load sensor can be adjusted as required, allowing the block to be customized to individual trim styles and onboard applications.

Automatic load-sensing ratchet function
Free-spinning in both directions at low loads
Engages the ratchet function at higher loads
Adjustable load sensor
Max. line Ø10 mm and SWL 227 kg