This Harken Carbo Ratchamatic 75 mm block is a single swivel block for efficient sail trimming, where the line needs to run freely under low loads and be controlled securely under higher loads.
The block features an automatic load-sensing ratchet function that engages when the load increases. This provides better holding power and more control without preventing free movement of unloaded lines.
The adjustable load sensor allows you to customize the engagement as needed, so the block can be used precisely in various trim and sailing situations.
Key features
Automatic Ratchamatic ratchet function
Free rotation in both directions under low load
Adjustable load sensor
8-sided Hardkote-anodized and Teflon-impregnated sheave
Suitable for lines up to 12 mm
