Wheels/tyres - some thoughts please ...

[pottman]

Folks,

I've recently replaced the front tyres (with the appropriate N2 rated Michelins) on my 997.2 C4S and almost immediately noticed a vibration from the steering wheel when driving at motorway speeds. I've subsequently had the front tyres balanced (twice), yet still the vibration continues and on further investigation am being told that it is the rear wheels/tyres that are damaged and causing the problem.

This has apparently been tested via replacing my tyres/wheels with an alternate set to check if the vibration disappears.

I accept that I live in a land of potholes and speed humps, but am generally very careful with this and have never kerbed my wheels, however I am now faced with replacing the two rear wheels /tyres at £x,xxx. The upside is that I can get a full set of tyres and sport classic wheels for £x,xxx + not much.

So ..

- why would I notice the vibration only after new front tyres have been fitted
- surely the vibration should be due to something on the front end - not the back end
- am I the only one who has experienced this issue

[pottman]

Thanks. Some good thoughts here. I have now tried two different companies to rebalance the wheels - both of whom I would expect to know what they are doing, so perhaps my rears really are damaged.

I too have used Chris before and didn't realise that he may be able to "re round" them. Definitely worth exploring.

Will let you know how I get on, I currently can't decide if I am aggrieved at spending the money or excited about having a new set of sports classics ..

[pottman]

Ian_UK1 said:

Best of luck - and it would be interesting to find out how things work out for you where this issue is concerned.

So I'm now feeling a lot poorer, but rather pleased with the way my C4S now looks and indeed handles ... no vibration at all.

Going to see if I can get the old wheels refurbished and then maybe sell on or use as winter set.



Ho hum.

[pottman]

Ian_UK1 said:

Now that's a proper, lateral-thinking solution!

Are they the Porsche-supplied 'Fuchs-style' or genuine (non-Porsche-approved) Fuchs?

Either way, they look the mutts on the 997 - great choice.

Thanks. I'm very pleased with the result, albeit an expensive one as they are Porsche Sport Classics.

Maybe if I can sell my old wheels it might ease the pain a little!