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Discussion Starter · #1 ·
The one aspect of my New AMG GLA that I am not too keen on is the low-profile 19in wheels. They look good and, frankly, I do not think then harshen the ride. But I just know they will get kerbed here in London, however careful I am. My past experience with low-profiles on my last 911 was not encouraging. On balance I would have preferred standard wheels but I bought the car as an ex-demo and therefore had no choice in the matter. I understand some of the problems of swapping wheels, includingthe need to maintain the overall circumference for speed recording. My car has tyre pressure monitoring (with run flats) and this could also raise issues.
Anyone have any views? Any specialists offering a service?
 

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Changing wheels should not be a problem at all, provided you stay within the sizes and ratios specified in the GLA manual. For example, each winter I fit smaller wheels with narrower tyres of a large profile (because these work better/safer in rain and snow), but as I bought them from MB they come fitted with pressure sensors as standard, MB approved tyres, and the outside circumference is the same as the standard tyres. This is what is important for the instrumentation: that the overall circumference is the same as normal. If you are fitting wheels that are not sourced from MB, just make sure that they will not be fouled by the GLA's large brake calipers. Aside from these issues, there really shouldn't be any major problems fitting smaller wheels with higher profile tyres.

This is my blog about fitting winter wheels and tyres, if it helps > http://www.sinclairdesign.com/b/blog/piste/winter-wheels-and-tyres/

Edited by: roytheboy
 

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Discussion Starter · #3 ·
Thanks. Very helpful. I hadn't consider the summer/winter aspect, probably because we don't need such stuff in London(!). I remember it was part of life in Germany in the winter. It occurs to me to just keep the current wheels for when I sell the car--most people expect a sportier trim to come with wheels. Do you mind my asking what you paid for the second set of wheels and tyres?
Mike
 

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I bought the wheels and tyres at the same place I bought the car from: the MB dealer in Beaconsfield. Their prices (car and wheels) were noticeably better than all other MB dealers I inquired at. This was nearly a year ago, so the prices might have changed by now.

As for not needing winter tyres in London: think again. If you hit your brakes at temperatures below 7 degrees, you car *will* stop sooner if you are running winter tyres, as the compound is made to stay flexible below this threshold. And if you also get snow and ice in London, which was certainly the case when I lived there, you will be *far* safer on good winter tyres. Being ex-forces, I also used to live in Germany, so yes, I know what you mean about winter tyres being the norm out there (and illegal not to run them in the winter). The same should be the case for the UK, but it would cost too much to the economy if the government legislated that way.
 

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The one aspect of my New AMG GLA that I am not too keen on is the low-profile 19in wheels. They look good and, frankly, I do not think then harshen the ride. But I just know they will get kerbed here in London, however careful I am. My past experience with low-profiles on my last 911 was not encouraging. On balance I would have preferred standard wheels but I bought the car as an ex-demo and therefore had no choice in the matter. I understand some of the problems of swapping wheels, includingthe need to maintain the overall circumference for speed recording. My car has tyre pressure monitoring (with run flats) and this could also raise issues.
Anyone have any views? Any specialists offering a service?

hi
if you want to sell the 19" wheels
gizz a shout
may have a interest in them :wink2:
 
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