Look ZED 2 Manual Del Usuario página 22

CHOICE OF CRANK LENGTH
The washer should penetrate to the end of the housing and not stick out after tightening
Axle marker
The support washer should not overrun from its housing
NO
NO !
NO !
Pivot the support washer before
Left-hand
inserting it in the crank so that the
crank
axis marking is found facing the
selected crank length.
Position of the washer for
a crank length of 170mm
Position of the washer for a crank length of 172,5mm
Position of the washer for
a crank length of 175mm
OK
NO OK
OK !
OK !
Right-hand
crank
GB
Fig 9
21