I have a 2007 honda fit and it is the base model so it has 14" tires. I would like to upgrade them to 15 or 16". I have been reading about speedometer changes and brake problems when you change the wheels. Can anyone help understand what it would entail to change these tires and if it is worth it. The reason i wanted to change the tires is cause i do a hell of alot of driving and have had two blow outs already. will it even help?