Downhaul Primary Assemblies

Primary lines with attached block to be used as one part of a 6:1 or 8:1 downhaul system. Primary line is Dyneema® SK78 and is sized according to the block type, leaving just enough space to attach a 4mm secondary line through the centre, and is available with a choice of colour. Note that you may need to ‘tease’ the secondary through by attaching tape to it. To build a full 6:1 or 8:1 system you need to add a lower block at the kicker level.

The length of the primary lines are selectable. As the tack cringle on the new MkII standard sail is considerably higher than the MkI standard/Radial and 4.7 sail we will optimise the primary line length to the sail that you use, and where you attach the end (kicker tang level or top of kicker assembly). The primary line length is set so the top block sits at approx. boom height in the ‘released off’ position to help avoid the blocks getting caught in the gooseneck. If you want your block to sit higher or lower just ask. Start by selecting the block type for your downhaul primary and use the drop down menus to select the line colour and length depending on your sail type:

6:1 Primary Line Assemblies

6:1 Downhaul Primary Line Assembly - Ronstan 20mm block
6:1 Downhaul Primary Line Assembly - Ronstan 20mm block
6:1 Downhaul Primary Line Assembly comprising 3mm SK78 Dyneema line with Ronstan 20mm Orbit block spliced on at one end and a spliced loop at the other end. The length of the primary line for Standard MkII is approx. 82cm from loop end to the block centre. The length of the primary line for Radial/Standard MkI/4.7 is approx. 70cm from loop end to the block centre
£17.95
Primary Line Size/Colour :
Optimised for :
6:1 Downhaul Primary Line Assembly - Allen 30mm block
6:1 Downhaul Primary Line Assembly - Allen 30mm block
6:1 Downhaul Primary Line Assembly comprising 4mm SK78 Dyneema line with Allen 30mm Dynamic Tii block spliced on at one end and a spliced loop at the other end. The length of the primary line for Standard MkII is approx. 82cm from loop end to the block centre. The length of the primary line for Radial/Standard MkI/4.7 is approx. 70cm from loop end to the block centre
£18.95
Primary Line Size/Colour :
Optimised for :
6:1 Downhaul Primary Line Assembly - Harken 18mm T2 Carbo Block
6:1 Downhaul Primary Line Assembly - Harken 18mm T2 Carbo Block
6:1 Downhaul Primary Line Assembly comprising 3mm or 4mm SK78 Dyneema line with Harken 18mm T2 Carbo block spliced on at one end and a spliced loop at the other end. The length of the primary line for Standard Mk2 is approx. 82cm from loop end to the block centre. The length of the primary line for Radial/Standard Mk1/4.7 is approx. 70cm from loop end to the block centre
£23.95
Primary Line Size/Colour :
Optimised for :
6:1 Downhaul Primary Line Assembly - Harken 29mm T2 Carbo Block
6:1 Downhaul Primary Line Assembly - Harken 29mm T2 Carbo Block
6:1 Downhaul Primary Line Assembly comprising 4mm or 5mm SK78 Dyneema line with Harken 29mm T2 Carbo block spliced on at one end and a spliced loop at the other end. The length of the primary line for Standard MkII is approx. 82cm from loop end to the block centre. The length of the primary line for Radial/Standard MkI/4.7 is approx. 70cm from loop end to the block centre
£27.95
Primary Line Size/Colour :
Optimised for :

8:1 Primary Line Assemblies

8:1 Downhaul - Primary Line Assembly- Harken 29mm
8:1 Downhaul - Primary Line Assembly- Harken 29mm
For sailors just wanting to update an existing system to a 8:1 system, the primary line assembly comprises two Harken 29mm blocks securely spliced using SK78 Dyneema. The length of the primary line for Standard MkII is approx. 82cm from loop end to the top of the upper block. The length of the primary line for Radial/Standard MkI/4.7 is approx. 70cm from loop end to the top of the upper block. This is so the top block sits at approx. boom height in the 'released off' position to help avoid the blocks getting caught in the gooseneck. If you want any other length (+/- 20cm) just add a note to the order
£52.50
Primary Line Size/Colour :
Optimised for :
8:1 Downhaul - Primary Line Assembly - Allen 30mm
8:1 Downhaul - Primary Line Assembly - Allen 30mm
For sailors just wanting to update an existing system to a 8:1 system, the primary line assembly comprises two Allen 30mm blocks securely spliced using SK78 Dyneema. The length of the primary line for Standard MkII is approx. 82cm from loop end to the top of the upper block. The length of the primary line for Radial/Standard MkI/4.7 is approx. 70cm from loop end to the top of the upper block. This is so the top block sits at approx. boom height in the 'released off' position to help avoid the blocks getting caught in the gooseneck. If you want any other length (+/- 20cm) just add a note to the order
£34.00
Primary Line Size/Colour :
Optimised for :

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