Opel Automobile Owner's Manual page 58

58 Storage
Insert the strap retainer and pull
tightly downwards as far as possible.
Press release lever and slide in wheel
recesses all the way as far as they will
go.
Disengage the locking lever on the
diagonal support and fold both pedal
crank recesses down.
9 Warning
Risk of pinching.
Swivel first the right clamping lever
(1) forwards, followed by the left
clamping lever (2), until they can be
engaged in their respective recesses.