My question is related to the controller that comes with the frog battery in the hard case. At the moment it seems to be held in a phone case off the centre. I'm wondering if replacing the phone holder with the hard box in the link and mounting it roughly in the same place below the handlebars would make it look more purpose built.yes but why do you want to move the controller out of the bag? The cables are made just long enough to minimize excess. Moving the controller out of the bag will require longer cables, more risk tangling them when parking, folding and unfolding.