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      03-18-2016, 01:14 PM   #1
MoMoF32
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Rear suspension problem?

Hi folks, BMW newbie here...

I have an f32 m sport with 442m alloys with RFTs. Whenever I come down from speed bumps there's seems to be hardly any give in the rear suspension and the car seems to makes more of a thud noise when going over uneven surfaces.

Is this normal and just properties of the run flats and sport suspension?

Apologies if it's a stupid question and thanks in advance!
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      03-18-2016, 03:50 PM   #2
stxf30
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Likely the runflats.
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      03-18-2016, 03:53 PM   #3
MoMoF32
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Ah ok, just didn't expect them to be that loud!
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      03-18-2016, 04:05 PM   #4
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How loud are we talking about? I'd say that the difference between regular tires and runflats is immediately noticeable. On my first BMW with runflats, I thought there was a suspension problem, because on uneven roads there was a lot of noise produced by the stiff sidewalls of the runflats.
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      03-18-2016, 04:17 PM   #5
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I'll try and take an audio clip. It's significantly louder than my wife's f34 M sport, but that's x drive and has 18" alloys with RFTs, so not directly comparable
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