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Discussion Starter · #1 ·
Hi all...

I have a C180Kompressor (in Australia thats a 1.8L Kompressor which has a bit less power than your 1.8 230K)
and I recently added 17" AMG replica wheels with low profile tyres to it.

Anyhow, It feels a little bumpier and heavier, hence acceleration is decreased.

Is this something that should be expected or have I bought bad quality wheels and tyres? =(
 

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The new tires and wheels are heavier, possibly a lot heavier. Each additional kilogram of weight added to the tires and wheels is like adding four kilos of weight to the car. Because it takes more power to start the heavier wheels turning, aceleration suffers.
 

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Discussion Starter · #3 ·
Is this the case all the time?

So are most wheels / tyres the same or did I buy some bad ones?
they are amg STAR replicas
 

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Wheels come in a wide variety of weights for each size of wheel. And of course, an 18 inch version of the a wheel will be heavier than a 17 inch. I was in the market for wheels to use for autocrossing recently. I found 7.5J x 17" wheels that weigh 15 pounds and I found some that weigh over 30 pounds. And some that were everywhere in between.

Heavier doesn't nessarily mean they are bad wheels. It just means that they are different than what you had. Many name brand tuner wheels, for example Brabus, Carlsson, Lorinser and others, are very heavy.
 

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Discussion Starter · #5 ·
I see..

SO heavy wont have any adverse effects on wear and tear etc?

Are my AMG Star replicas with Falken tyres a good combo?
Will they perform ok?
 

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Discussion Starter · #7 ·
Lynn said:
I'm on Falken Azenis tires right now and I really like them. Your wheels are probably a little heavier than my ATS wheels and you have a little less power, so you won't accelerate as quickly. That tire and wheel combination should not be a problem.
I see...

So the star replicas arent a bad wheel?

Also when the people put them on, thats all they did...
they took about 10 minutes and that was it.. did they need to balance it or something?
 

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Discussion Starter · #9 ·
Lynn said:
Yes, they should have been balanced. Are you noticing any vibrations?
Not really, but i woulda have thought the process would take more than 10 mins.

Its a little bumpier but no vibrations as such ...
 

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Yes it will be a little bumpier because of the shorter sidewalls of the tires used with the 17" wheels.

If there are no vibrations, just keep an eye on the tread wear patterns to see if anything unusual beginning to develop. Also, rotating the tires seems to be more important on my coupe than any other car I've owned. Rotate them every 8000km or so.
 
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