tyre pressures - 205/40/ZR17s

[half-9 0]

Hi,

 

My G60 Corrado has aftermarket alloys & tyres, can anyone confirm what the correct tyre pressures should be for this setup; 205/40/ZR17s

 

Thanks

 

H

[dr_mat 0]

We've been banging on about this for some time. No-one knows for sure.

 

The only way to find out is to call the tyre manufacturer and tell them how much weight the tyre will have to bear.

On a G60 with approx 65/35 weight distribution that means 1100kg*65%/2 (~ 360kg) for the fronts, and 1100kg*35%/2 (~ 200kg) for the rears. They should then be able to tell you what range of tyre pressures are suitable. Then you choose a point in that range that provides the best compromise between handling sharpness and ride comfort.