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Ships within 48 hours · Estimated delivery Nov 17 - Nov 22
Maximum working load - 2750kg
Ø (mm)- 6 mm / 1/4 inch
Weight - 80grams
Stretch Percentage at 20% of Breakload - 4
and other systems where lightweight blocks are needed
Harken 57mm Zircon Block 100m Maximum working load - 2750kgHarken 57mm Zircon Block The Harken Zircon blocks are the most efficient blocks on the market and this helps trimmers match sail shapes to new conditions immediately. The Zircon performance comes from industrial ceramic ball bearings that are mounted in a caged race. The cages keep the bearings separated so they dont bunch, touch, and stop each other resulting in the most efficient small boat block Harken has ever made. The 57mm Zircon efficiency is
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