Customer Basic Requirements Tyre must fulfill the four customer requirements. 1. To carry the load Tyres always carry load just like passengers and cargo. Tyres supports the weight when vehicle in dull condition but when vehicle in motion Tyre must also resist the considerable loads shifts during acceleration and braking. A car Tyre has to carry over 50 times of its own weight, it is remembered that the part of Tyre actually carries air inside the Tyres. 2. To transmit the driving and braking forces The Tyres transmit the acceleration and braking forces to the road through footprint area. A change in inflation pressure modifies the footprint area, therefore proper air inflation is crucial for the Tyre to fulfill this function. 3. To change and maintain direction This is the steering function in which Tyres help maintain a straight line or change direction. The Tyre must steer predictably, regardless of the road or weather conditions. The Tyre should transmit steering inputs ...