Harken 75mm Aluminum Standup Block Harken Self Contained Sheaves Harken Set/Big Boat Track Risers

Harken Set/Big Boat Track Risers CB Set

and 16 mm running line

To perform smoothly and carry the correct load

Larger boats than Maximum LOA Boat Outboard End - 43' and Maximum LOA Boat Inboard End - 36'

the main halyard can be attached to the aft end of the boom and tightened for further support

Harken 75mm Aluminum Standup Block Harken Self Contained Sheaves Harken Set/Big Boat Track RisersHarken 75mm Aluminum Standup Block Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free running, powerful performers are used for sail controls that see lots of action. Sideplates and sheaves Hard Lube anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced