轮胎与行驶地面的接触面。几乎为矩形的轮胎胎面取决于每个车轮的负载大小，轮胎类型，轮胎的构造类型和形状以及行驶地面的状况。轮胎与路面之间产生的压力就是车轮压力。充气轮胎和超级缓冲轮胎通常被踩踏。

      Contact surface of tyre and travel ground. The almost rectangular tyre tread depends on the size of the load per wheel, the tyre type, the construction type and shape of the tyre, as well as on the condition of the travel ground. The pressure resulting between tyre and road surface is the wheel pressure. Pneumatic tyres and super cushion tyres are usually treaded.