NX 450h+ Road Noise on 20 inches wheels

[Pavan]

Hi All,

Apologies if this topic is discussed million times but with the stock bridgestone alenza 20 inches run flat tyres, I am finding the road noise unbearable. Yesterday, I drove my friend's NX 300H with 18 inches Michelin Cross Climate 2 non run flats, I found that they were super quite.

3 variable i am thinking of-

a) 18 inches vs 20 inches

b) Run flats vs non run flats 

c) Bridgestone vs Michelin tyres

Options I can think of

a) Change RF to NRF with Michelin Cross Climate 2

b) Change 20 inches wheels to 18 inches wheels

c) Change RF Bridgestones to some other quieter Run flats.

Opinions please!! Happy to know if there are other options to reduce the road noise.

Thank you in advance.

Pavan  

 

 

[ColinBarber]

Stock tyres are normally poor (cheap, or only focused on one feature (e.g. emissions)) compared to the best on the market. I'd switch to the best run flats or move away from them if you are happy to lose the puncture protection.

Moving to smaller wheels is obviously a more expensive option - you would get better comfort, better economy, rims less prone to pothole damage and less noise but you give up the look of the larger wheels (if that is of interest to you). If you go with Lexus original wheels then you wouldn't, IMO, need to inform your insurance company as they would be deemed factory installed equivalent - otherwise you would need to inform them and possibly pay an admin fee to get the change noted on your policy.

Michelin CC2 aren't the quietest of tyre, but they are a good all round tyre for the UK.

 

This is probably the best resource to research tyres:

https://www.youtube.com/@tyrereviews/videos

 

[Pavan]

50 minutes ago, ColinBarber said:

Stock tyres are normally poor (cheap, or only focused on one feature (e.g. emissions)) compared to the best on the market. I'd switch to the best run flats or move away from them if you are happy to lose the puncture protection.

Moving to smaller wheels is obviously a more expensive option - you would get better comfort, better economy, rims less prone to pothole damage and less noise but you give up the look of the larger wheels (if that is of interest to you). If you go with Lexus original wheels then you wouldn't, IMO, need to inform your insurance company as they would be deemed factory installed equivalent - otherwise you would need to inform them and possibly pay an admin fee to get the change noted on your policy.

Michelin CC2 aren't the quietest of tyre, but they are a good all round tyre for the UK.

 

This is probably the best resource to research tyres:

https://www.youtube.com/@tyrereviews/videos

 

Thank you for your reply. Personally, i would not care much about the looks of 18 vs 20 as long as the road noise is less. I know its not going to be a cheap option but hopefully, I might find someone who would want to swap 🙂

Thanks also for the youtube link.