Opel Automobile Owner's Manual page 60

60 Storage
Insert pedal crank mount into outer
rail of each pedal crank recess from
above and slide downwards as far as
it will go.
Attach the pedal crank by rotating the
attachment screw on the pedal crank
mount.
Place the wheel recesses such that
the bicycle is more or less horizontal.
Here, the distance between the
pedals and the tailgate should be at
least 5 cm.
Both bicycle tyres must be in the
wheel recesses. In order to prevent
damage, neither the pedal bearing
housing on the bicycle nor the pedal
crank is allowed to be touching the
pedal crank recess.
Align the bicycle in the longitudinal
direction of the vehicle: Slightly
loosen the pedal mount.
Place the bicycle upright using the
rotary lever on the pedal crank
recess.
If two bicycles obstruct one another,
the relative positions of the bicycles
can be adapted by adjusting the
wheel recesses and the rotary lever
on the pedal crank recess until the
bicycles no longer touch one another.
Make sure there is sufficient
clearance from the vehicle.