Wider tyres on the front (R53 JCW) - good/bad idea?! - MINI Cooper Forum

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post #1 of 4 (permalink) Old Jun 17th, 2014, 10:44 AM Thread Starter
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Wider tyres on the front (R53 JCW) - good/bad idea?!

Hi all,

I've just had to replace a rear tyre on my R53 JCW due to damage (205/45/17 Pirelli Eufori run flats) and was advised that the fronts are on their way out. I have two questions related to replacing the fronts:

1. I know it's probably not ideal but I prefer the ride on non run-flats so what do people think about having run-flats on the rear and 'normal' tyres on the front (with tyre-weld in the boot!)?
2. In an effort to improve front-end grip what effect would having 215's on the front have. I know it's unorthodox to have wider fronts but I figure overall grip would improve making for better bite on turn in and less understeer?

Overall I'd like better front-end bite and a better ride so what do people think?

Cheers.
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post #2 of 4 (permalink) Old Jun 17th, 2014, 12:14 PM
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I dont think theres much clearance between the tyre and strut as standard at the front to go much wider, it needs checking before you go and buy some I would suggest?
Otherwise it might lead you down the spacer route?
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post #3 of 4 (permalink) Old Jun 17th, 2014, 04:23 PM
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Quote:
Originally Posted by Chuck21 View Post
Hi all,

I've just had to replace a rear tyre on my R53 JCW due to damage (205/45/17 Pirelli Eufori run flats) and was advised that the fronts are on their way out. I have two questions related to replacing the fronts:

1. I know it's probably not ideal but I prefer the ride on non run-flats so what do people think about having run-flats on the rear and 'normal' tyres on the front (with tyre-weld in the boot!)?
2. In an effort to improve front-end grip what effect would having 215's on the front have. I know it's unorthodox to have wider fronts but I figure overall grip would improve making for better bite on turn in and less understeer?

Overall I'd like better front-end bite and a better ride so what do people think?


Cheers.
Hi

Firstly do not mix run flats and non run flats it's not safe for many reasons.

If you change tire width or profile you must use same tire in all 4 corners,
Or you will cause problem with in the stability control and abs speed sensors and tpms etc

If you want a good handling mini use a good quality tire all round go non run flat and carry a can of tire repair with you

You can run a 215 ok if you want but in all corners but I would say on a standard 7J wheel if that's what you have stay with the 205/45/17

Hope this helps
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post #4 of 4 (permalink) Old Jun 18th, 2014, 02:17 PM Thread Starter
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Thanks guys, much appreciated.

Marque, I totally agree and would prefer not to mix standard and run-flats but I have near new run flats on the rear and the fronts are close to wearing out. I therefore have three choices:

1. Replace the fronts with run-flats to match the rear; all will match but I really want non run-flats!
2. Replace the rears when I replace the fronts; that way I get 4 x standard tyres but waste 300 that I can't afford to do.
3. Put standards on the front then change the rears to standard tyres when they wear out.

If it's really is thyat bad to mix then I won't but I can't see another way!
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