For boats 8-10 m (26-33 ft) /Forestay Ø 4-7 mm /Max. headsail size: 35 m²Supplied complete for forestay : 11.20 mLuffrope diameter, finished 6.5 mmDrum sheet capacity 17.5 m, Ø 8 mm.It requires no unstepping of the mast, and no modification of the forestay, thanks to a unique (patented) design which allows quick and easy installation directly on the tensioned forestay. The inner PVC liner is clipped onto the forestay and the aluminium spar slides easily over the PVC liner.The risk of tearing sails at junctions is therefore much reduced.The unique design allows swift and easy installation directly on the tensioned forestay. Combined with the mounting of PVC and alloy spars alternatively, this system guarantees maximum performance and reliability on most types of yachts, without altering the boats original characteristics.811 S : for boats from 8 to 10 m (26 to 33 ft).Like the 608 S, the 811 S features drum cheeks that swivel through 360°, thus preventing snagging and chafing. Chainplates are fully adjustable, in order to adapt to either chainplate or turnbuckle mounting. The new generation is equipped with tough Torlon balls, alternated with Delrin balls, ensuring even smoother drum rotation.