HARKEN BLACK MAGIC STANDUP BLOCK 100MM
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action.
Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
Sheave Ø (mm)
100 mm
Sheave Ø (in)
3 15/16 in
Length (mm)
195 mm
Length (in)
7 11/16 in
Weight (g)
884 g
Weight (oz)
31.18 oz
Maximum line Ø (mm)
16 mm
Maximum line Ø (in)
5/8 in
Maximum working load (kg)
3402 kg
Maximum working load (lb)
7500 lb
Breaking load (kg)
6804 kg
Breaking load (lb)
15000 lb
A (mm)
93 mm
A (in)
3 21/32 in
B (mm)
97 mm
B (in)
3 27/32 in
C (mm)
59 mm
C (in)
2 5/16 in