b'Fly BlocksFly BlocksHarken 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 mm18 mm blocks feature an integrated stainless steel inner race and rivet, stainless steel ball bearings, and composite fiber-reinforced sideplates.29 & 40 mm29 and 40 mm blocks feature a one-piece titanium outer race/sheave, stainless steel ball bearings and inner race, and composite fiber-reinforced sideplates.2173 Use the 2161 tight cinching 18 mm in applications where the block needs to be secured extremely close to the deck. MOUNT WITH2161 2698 2158 2180 1250 2171 SOFT ATTACHMENTPart no.3414We offer more kinds of soft-attach blocks than ever. 29 mm fly blocks pair well with a 40 mm soft shackle with a unique T-Close in 2.5mm diameter line.Sheave Max line Maximum BreakingPartLength Weightworkingload loa dN o. Description in mm in mm oz g in mm lb kg lb kg215818 mm Double23/32181 3/3228.6173/1654502041500680. 3/16 216118 mm Single/narrow23/32181 3/3228 257.25275125992450 1250 25 mm Single 1 25 1 3/4441.2 34 3/165606 275 1212 550 217129 mm Single * 1 1/8291 3/444.92269/3277703501540700217340 mm Single * 1 9/16402 5/16582.262.211/329143565028701300218018 mm Triple23/32181 3/3228128.43/165600272110049928125 269818 mm Single23/32181 3/32.257.23/165275992450 14 *Lashing line not included.'