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2011 R56 N18 Mini Cooper S - 2012 R56 N16 Mini One
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Discussion Starter · #1 ·
A question for you illustrious Mini officionados...
I have put wheel spacers on my cooper s, 12mm at the front and 15mm at the rear.
Would it be better to switch them round so front has a slightly (6mm) wider track or will it make bugger all difference?
I have been reading about (and been very confused by) wheels spacers and scrub angles. Now my head hurts.

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2011 R56 N18 Mini Cooper S - 2012 R56 N16 Mini One
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252 Posts
Discussion Starter · #4 ·
Wider front is better all other things being equal
But same front and rear would be better?

didn't you mention it squirrelling about under braking before with spacers on? It's one example of an effect of negative scrub radius
I did indeed. Seems better since lowering front end slightly, though not completely.
Perhaps I should stop being a tight arse and widen track the proper way with lower offset wheels.
Currently on ET48.
If I went to ET35 it would have same effect as 13mm spacers without affecting scrub angle/radius?
 

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2011 R56 N18 Mini Cooper S - 2012 R56 N16 Mini One
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Discussion Starter · #6 ·
Much appreciate the detailed reply.
More info than I can digest at one sitting.
Starting to make sense though on my 3rd reading.
Takes time for this old dog to learn new tricks.:D
 

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2011 R56 N18 Mini Cooper S - 2012 R56 N16 Mini One
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252 Posts
Discussion Starter · #7 ·
Ok, think I got scrub radius.
The lower the offset/bigger the spacers the more positive scrub you are creating which leads to a proportional increase in tram lining and bump steer.
Now to try and get my head round motion ratio.
 

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2011 R56 N18 Mini Cooper S - 2012 R56 N16 Mini One
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252 Posts
Discussion Starter · #9 ·
I had 10mm spacers all round on my R53.
It looked cool but drives far better without them.
I am in a similar dilemma. Have left them on with 15's at the back.
Although there are some positives.
Steering and turn-in feels sharper and I am getting plenty of feedback from the road.

I think it is more a problem with the roads and the lazy way they are resurfaced these days.
Give it a sweep and stick the new stuff straight down.
Doesn't matter that drain covers are 3 inches below the road surface!! 😢

On a decent road surface it feels great and corners like its on rails. (compared to my old Fiat diesel estate 😂 )
 
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