10:1 Downhaul System - Allen 30mm High Load Blocks

10:1 Downhaul System, using the amazing Allen 30mm high load blocks for optimum performance.   

This downhaul system is available with Robline Polytech, a Dyneema® SK78 core and blended Technora®/Polyester cover for durability and grip.  

Primary line is 4mm SK78 Dyneema.

Choose the secondary line type and colour and length that you want.  PLEASE NOTE that this 10:1 system is only intended for the ILCA7 using the Standard MKII sail.  It is not needed for the ILCA4 (4.7) or ILCA6 (Radial) rigs where the 6:1 and 8:1 systems are perfect.