Cooper S 18" Alloy wheels problem - MINI Cooper Forum

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post #1 of 4 (permalink) Old Mar 27th, 2014, 05:24 PM Thread Starter
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Cooper S 18" Alloy wheels problem

I own a 2007 Mini Cooper S, I have changed my original set of 17" Mini Cooper alloys for a set of Kahn RSV 18" wheels with 215/35 18 Runway tyres. The alloys are 7.5J 4x100pcd ET 45.

I brought them second hand with one of the alloys dented on the inside rim, so I brought a replica 18" RSV rim to replace the damage one and swopped the tyre over. I have now fitted them to the mini a they look great. The problem is that they are quite noisy and they make a slight wobble on the steering wheel at around 50mph. I put the sound down to the cheap tyres, I put the two tyres with the most tread onto the front. Two of the wheels have just been balanced as one tyre was swopped over and the other had a nail repair.

Is the wobble caused by the two alloys needing re balancing or does the tracking need doing as they are bigger and new in the car?

Any advise would be great.
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post #2 of 4 (permalink) Old Mar 27th, 2014, 05:59 PM
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What is the centerbore of the wheels? If they are larger than OEM (56.1mm) and you don't have hub-centric rings, wheels may cause steering wheel wobble at higher speeds.

BTW ... the tires with more tread should be mounted on the rear wheels.
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post #3 of 4 (permalink) Old Mar 27th, 2014, 06:11 PM Thread Starter
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The believe the three Kahn alloys are 56.1, the replica wheel is a TITAN Chaos alloy wheel. I'm not sure what centerbore this is. When I fitted the Kahn's they fitted on perfect, but the Titan one moved around and did not sit snug until bolted on. Do you think the Titan one need a spigot ring on it.

I thought that it was front wheel drive, so I have put the better tyres on the front.
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post #4 of 4 (permalink) Old Mar 27th, 2014, 07:44 PM
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Quote:
Originally Posted by Minimax187 View Post
... the Titan one moved around and did not sit snug until bolted on. Do you think the Titan one need a spigot ring on it.
Yes

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I thought that it was front wheel drive, so I have put the better tyres on the front.
It's easier to recover from the front wheels breaking loose than it is from the rear wheels losing grip.
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