Bad ride and noise on 18 inch wheels

[Steve1211]

I just took delivery of the base model of the Rz 450e on 18 inch wheels and the ride in town is very bad, you feel every bump and pothole and there is a lot of wind noise on motorway driving. It dosent seem very composed and isolated like a Lexus.

All the reviews online are saying the opposite so was quite surprised.

Is anyone else experiencing the same issues.

[F.A.]

Have you checked that the tyre pressures are not over inflated ?

[Steve1211]

Thank you , will check

[wivenhoe]

Definitely sounds like overinflated. Mine and others on here were also overinflated. John on here said it was normal as they overinflated them for the long sea journey and they’re not checked before handover.
 

I also swapped the Dunlops for Mitchelin Cross Climates and they much quieter on my 20”. 

[Steve1211]

Thank you for your reply.