40mm Zircon Block - Single
Zircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they don't bunch, touch, and stop each other. The result is the most efficient small boat block Harken has ever made.
Mfg No. 2190
Sheave Diameter 1-9/16" (40mm)
Length 2-3/8" (60mm)
Max Line Diameter 5/16" (8mm)
Max Working Load 250 Lbs (115kg)
Breaking Load 750 Lbs (340kg)
Weight .81 oz. (22.9g)
Sold individually