Honda CB Unicorn 160 Owner's Manual page 68

Chain Case Removal
1. Remove bolts A (1) from both side of
the rear wheel hugger (2) and slide it
backwards to remove from the stay.
2. Remove the bolts B (3) and screw (4)
of the upper chain case. Slide the upper
chain case (5) backwards away from the
engine and remove it carefully. Remove
bolts C (6) from the lower chain case
and remove the lower chain case (7)
from the swingarm carefully.
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(1)
(4)
(3)
(6)
(1) Bolts A
(2) Rear wheel hugger
(3) Bolts B
(4) Screw
(5) Upper chain case
(6) Bolts C
(7) Lower chain case
(2)
(5)
(7)