Opel Automobile Owner's Manual page 59

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
Note
The maximum width for the pedal
crank is 38,3 mm and the maximum
depth is 14,4 mm.
Rotate the left pedal (without a chain
cog) 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.
Caution
Make sure that the pedal does not
touch the surface of the rear end
carrier. Otherwise the bicycle
crankset might be damaged
during transport.
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