If your pads are worn, they will allow you to pull the lever further back, if it was mine I would fit new pads front & rear simply because you don't know what state they are in, & if they wear down to the metal, they will score & ruin the discs,leading to more expense,and you wont stop! better safe than sorry with brakes, again if you aren't too good on the spanners get the LBS to do it as they are the last thing you want to fail!
