Page 9 - Harken

Fly Blocks Fly Blocks

Harken soft-attach Fly blocks are designed to provide strength without
mass, providing sailors with big power in a low-aero package. Designed
specifically for high-tech line, these efficient blocks have an incredible
working load for their small size. Fly blocks are perfect for use on foiling
dinghies and sportboats and for vang cascades and backstay systems on
Grand-Prix racers.
18 mm
18 mm blocks feature an integrated stainless steel inner race and rivet,
stainless steel ball bearings, and composite fiber-reinforced sideplates.
29 & 40 mm
29 and 40 mm blocks feature a one-piece titanium outer race/sheave,
stainless steel ball bearings and inner race, and composite
fiber-reinforced sideplates.

Use the 2161 “tight cinching” 18 mm
in applications where the block
needs to be secured extremely
close to the deck.

2161 2698 2158 2171 2173

Sheave Max line Maximum Breaking
Part Ø Length Weight Ø working load load
No. Description in mm in mm oz g in mm lb kg lb kg
2158 18 mm double 23/32 18 1 3/32 28 .6 17 3/16 5 450 204 1500 680
2161 18 mm single/narrow 23/32 18 1 3/32 28 .25 7.2 3/16 5 275 125 992 450
2171 29 mm single * 1 1/8 29 1 3/4 44 .92 26 9/32 7 770 350 1540 700
2173 40 mm single * 1 9/16 40 2 5/16 58 2.2 62.2 11/32 9 1435 650 2870 1300
2698 18 mm single 23/32 18 1 3/32 28 .25 7.2 3/16 5 275 125 992 450
*Lashing line not included.
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