Opel Automobile Owner's Manual page 55

Press the release lever and withdraw
the wheel recesses.
Push the release lever on the strap
retainer and remove the strap
retainer.
Prepare the bicycle for
attachment
Rotate the left pedal (without a chain
leaf) vertically downwards. The pedal
on the left pedal crank must be
horizontal.
The front bicycle must have its front
wheel facing left.
The rear bicycle must have its front
wheel facing right.
Storage
Attaching a bicycle to the rear
carrier system
Put on the bicycle. The pedal crank
here must be placed in the pedal
crank recess opening as shown in the
illustration.
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