In order to achieve optimal driving characteristics Continental recommends that the same tires are fitted on all wheel positions of your vehicle. In other words tyres of the same brand, tread pattern tyre size, load index and speed symbol should be fitted all round. Especially important is that the tyre size load, index and speed symbol are in accordance with the vehicle manufacturer’s specification for all wheel positions. In many countries, this is a legal requirement. Driving your vehicle with a non-recommended mix of tyre sizes, constructions, and speed ratings can be dangerous and illegal. Follow the vehicle manufacturer’s recommendations and/or seek the advice from a trained tyre specialist if you consider upgrading your tires with different sizes, constructions, load ratings or speed ratings.