关于钢圈的噪音问题

[pla]

作者: 小嘎

这两年冬天我的轮胎从合金圈+四季胎， 换到普通钢圈+nordic冬季胎。每当速度升到90左右就会明显听见好像柴油truck怠速时的咔拉咔啦从前部出来，随着速度的下降声音消失胎噪加大。在80-90尝试加大发动机转数，咔拉咔啦频率跟随车速增加。 度娘怀疑是力臂顶缸，夏天换回四季胎消失。尝试过矿物油，全合...

It should not be from either the engine or the rims. Most likely, the noise is from the winter tires and it is absolutely normal, that is how winter tires give you more control. No worries, my car with winter tires at high speed sounds like truck too.