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6:1 Downhaul System - Ronstan 20mm Blocks

6:1 Downhaul System, using Ronstan 20mm Orbit blocks.  These 20mm blocks are only suitable for the Radial/Standard MkI and 4.7 rigs.  For the MkII rig use the larger 29/30mm blocks and ideally an 8:1 system.  The downhaul is available with a choice of secondary lines,Robline Dinghy Control secondary line or our premium Polytech line.   

Dinghy Control is a general purpose Polyester cover with a Dyneema® SK78 core. 

Robline Polytech has a blended Technora®/Polyester cover for excellent durability and grip, and a Dyneema® SK78 core providing greater longevity especially for the highly loaded downhaul where the cleat causes wear, and excellent grip in the hands.

Primary line is 4mm SK78 Dyneema.

Choose the secondary line type, colour and length that you want.  

Main photo shows system with Dinghy Control secondary in red/white.

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