The posi-lock folding system is a folding/locking system was created as a design improvement over similar mechanisms which left the steering support pole less than securely attached to the front fork. The rigidity of this design is unmatched in the scooter world.
Though the posi lock style support fold only connects on one side of the scooter, and the lighter side at that, it has plenty of strength to be able to lift the heavy engine side of the scoot with relative ease.
In order to release lock in order to change the position of the support, the black rubberized handle must be pulled away from the support shaft. This releases the cog holding the support in place and will allow you to rotate it to a new position.