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I have looked but I cannot see the answer..

529 views 3 replies 3 participants last post by  AstroCooperS 
#1 ·
Hello All,
I still have the R53 and I am due to either change the back tyres or all 4,
its on 18's Jcw R105 Alloy's with 205/40/18 tyres,
I am wondering if 215/40/18 would fit?
or could I go any bigger without rubbing?

The wheels are;
18"
7J
52 Offset

I know most will say change the RFT for normal, but its not my choice,
so I am looking to do as much as I can while keeping the 18's..
 
#4 ·
Thank you both so far, are there any other comments as this is a little close to call..

215/45/17
Diameter = 24.6"
Width = 8.5"
Sidewall = 3.8"
Circum. = 77.3"
Revs/Mile = 820

215/40/18
Diameter = 24.8" (+0.8%)
Width = 8.5" (+0.0%)
Sidewall = 3.4" (-10.5%)
Circum. = 77.8" (+0.8%)
Revs/Mile = 815 (-5)

I think I will just have to go for it unless anyone else can advise different form history?
 
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