Quietest tyres - 245/17/45

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zYx

zYx

zYx

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I need to buy new tyres, most efficient and quiet. At the moment I have Dunlop Sport Maxx and according to their specs they are labelled as 69db. Do these numbers mean anything?

Anyway I need them in size 245/17/45. Any suggestions welcome. I'm looking for an online retailer with mobile fitting.
 
zYx said:
according to their specs they are labelled as 69db. Do these numbers mean anything?.
Click to expand...
Yes, they mean a lot and are very useful numbers, they're a logarithmic scale used for measuring sound and RF signals.
 
Col_M said:
Yes, they mean a lot and are very useful numbers, they're a logarithmic scale used for measuring sound and RF signals.
Click to expand...

What I meant by that is that the difference between all tyres is 1dB, 2dB or 3 decibels. Is this a big difference?

Would it be noticeable in such a size as 245 wide?
 
TBH I think you will be unlucky finding a tyre that's quiet at that ratio (245/45) --Is it also marked Extra Load.

I have 225/45/18 and not long had some new Dunlop Maxx RT's Extra Load all round and although they were marked down as quieter than Continentals that were on I can't tell any different. I also have a set of steel wheels with winter tyres on (205/55/16) and they are just as noisy due to being XL - The steels came with tyres on but not XL and were noticeably quieter when I tried them before getting winter tyres fitted.

I have a mate who has a Jag and he has same problem with road noise - I put it down to Extra Load and stiffer side walls

My next car will have 17" rims and balloon tyres as road noise drives me potty even being half deaf.

Dave
 
How about the fuel consumption?

...or should I just leave it and find a pattern that I like :p
 
zYx said:
What I meant by that is that the difference between all tyres is 1dB, 2dB or 3 decibels. Is this a big difference?

Would it be noticeable in such a size as 245 wide?
Click to expand...

3db is equivalent to double the lower volume...

ie 72dp is twice as loud as 69db
 
Dr Who said:
3db is equivalent to double the lower volume...

ie 72dp is twice as loud as 69db
Click to expand...

correct, but as decibel is useless without a base,

it is, 72db spl is twice as loud as 69db spl,

spl being the 'sound pressure limit' or the quietest thing we can here
 
soundood said:
correct, but as decibel is useless without a base,

it is, 72db spl is twice as loud as 69db spl,

spl being the 'sound pressure limit' or the quietest thing we can here
Click to expand...

So at the moment th equietest tyres I found are the ones I already have. Dunlop Sport Maxx.
 
Just remember those noise figures are from an external microphone measured as [some model of] car drives past. As such they do not give a very good indication of cabin noise levels.

Cabin noise is also vehicle dependent. A tire that sounds quiet on one model when put on another could sound significantly louder due to unfortunate resonances and harmonics kicked up by the specific combination of tires, suspension and body shell components.

My best advice would be to find an owners forum for your specific car and ask what they run.
 
86JR

Were those tyres "Extra Load" or not - That makes a big difference in my opinion.

I took Continental Sport Contact 2 off my car and put on the Dunlop Maxx RT and found no difference in cabin noise level - Both are noisy but as said above mine could be car specific.

Dave
 
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