You should never attempt to change a tyre if you feel that the environment is unsafe. You should assess the situation to determine whether you can change the tyre yourself or if you should call a breakdown service to do this for you. If you�ve broken down on the hard shoulder of a busy motorway it is very dangerous to change a tyre, even if you have someone there to keep a lookout. If you find yourself in this situation it is best to stand well back from the road and contact a breakdown service, using an emergency phone if possible. Don�t forget, if you�re ever worried about the condition of your tyres or fear experiencing a blow out, Kwik Fit have a free tyre check service that could put your mind at ease. Give your local centre a call if you need an assessment or new set of tyres!