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Do these wheels/tyres fit? Read this post first!

Discussion in 'Bodywork, Tyres, Wheels & Trim' started by Chris Murray, May 26, 2011.

  1. KennyN

    KennyN Senior Member

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    The fronts will sit 23mm further out , closer to the arches as the wheels are the same width.

    Rears will do likewise , but 32mm closer to the arches as the rears are 12mm (6mm a side) wider than stock .

    I doubt that you will have the room for them , especially at the rear.

    Kenny
     
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  2. V6Matty

    V6Matty Senior Member

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    Thanks Kenny, think that puts yours out for me then, bit of a shame as you've kept them in good condition and I could do with a second set for summer
     
  3. KennyN

    KennyN Senior Member

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    No problem mate , i only posted a reply on the forum in-case there were any others thinking about the suitability of the wheels for their car.

    Kenny
     
  4. V6Matty

    V6Matty Senior Member

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    Yep makes sense Kenny, bit of a shame as I say but it's just a little too close for comfort
     
  5. Bloke

    Bloke Member

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    I just want reassurance

    W204 C200 CDI AMG Sports (2011)

    Currently have
    FRONT: 225x40 R18 -
    REAR: 255x35 R18 -

    I am getting new RIMS ( 8x18 ET50 5.00x5x112 Hubhole 66.60) all round to go with with 225X40 R18 tyres allround

    I am assuming they would fit

    Any advice please.
     
  6. LostKiwi

    LostKiwi Senior Member

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    You need to know the ET of the existing wheels.
     
  7. Bloke

    Bloke Member

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  8. KennyN

    KennyN Senior Member

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    The third column in from the LHS is the (ET) offest.

    Kenny
     
  9. Bloke

    Bloke Member

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    So will they fit? (they do according to my non technical mind)
     
  10. KennyN

    KennyN Senior Member

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    According to your info X referenced with the chart you have :

    18x8 50 225/40R18 18x8.5 54 255/35R18 AMG ?

    You want to fit : 8x18 ET50

    So they will fit based on the above , the back ones will be a few mm difference but nothing i would be concerned about.

    Any reason you are are wanting to reduce the rear tyre width by 30mm ?

    Kenny
     
  11. Bloke

    Bloke Member

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    Thanks for the reply ...


    "Any reason you are are wanting to reduce the rear tyre width by 30mm ?"


    Cost and ?improve ride with higher profile tyres (35 v 40)
     
  12. KennyN

    KennyN Senior Member

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    The profile size (mm) of the rear tyres will be the exactly the same.

    255 / 35 = 89.25mm

    225 / 40 = 90mm.

    Kenny
     
  13. Bloke

    Bloke Member

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    Your advice please?
     
  14. KennyN

    KennyN Senior Member

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    Impossible to advise until all the facts are known.

    If it is a cost saving exercise then buy a cheaper brand of tyres, seems crazy to buy another set of wheels and tyres just to save a few quid in original rear tyre costs

    If it is a comfort issue then if the car is on stock suspension then either live with it or change cars as there is not much realistically that can be done. You could fit a set of 16" or 17" rims that would need an increased profile , to keep the running diameter the same, which may make the car more comfortable over the potholes but will they fit over the brakes ??

    Decreasing the width of the rear rubber may also have an impact on your insurance , should you need it. If you told them they would possibly charge for the change and charge for the modification , if they will cover it at all as , in theory, it is making the car less safe with less of a contact patch on the driven wheels.

    Kenny
     
  15. Bloke

    Bloke Member

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    Thanks for the advice
     
  16. JBell

    JBell Senior Member

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    These sizes / ETs are correct

    Tyres

    front: 245/40R18 97W XL
    rear: 265/35R18 97W XL
     
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  17. moj91

    moj91 Senior Member

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    Your Mercedes:
    '09 W204 C-Class 250 CDi, '05 W220 S-Class 320CDI (AMG Kit), '03 W168 A-Class 170CDI LWB Elegance...
    Has anyone fitted a 235/40/18 tyre to the front of the non-AMG W204? I have a C250 with AMG pack front wheels (AMG IV, 8Jx18 ET50) which have the 225/40/18 as standard.
    I currently suffer from rather severe shoulder wear, both inner and outer. Having considered and, hopefully eliminated tyre pressure issues (under inflation being the most obvious), tracking, notable bush wear, front bearing play etc. I'm still finding it to happen, resulting in the shoulders wearing through when i still have 5mm on the central tread area. Various garages and tyre places have all come back with the same response, tyre rollover during harder cornering. (plenty of roundabouts where i live...) I have noted that, on the 8J wheel, the 225 width sits rather 'stretched' (Michelin PS3, then PS4). I used to have 7.5J wheels on my last car, with 225 width wheels and never suffered this issue, and drove that harder.
    I've used various online tyre/wheel size comparison tools, and the 235 tyre comes out as only marginally bigger than the 225, but is crucially more 'square' on the shoulder. I believe that this tyre will fit in the wheel-arch without fouling, but I'm not sure on suspension clearance, so I'm basically asking if anyone has made this change/fit and if it has worked or fouled on the suspension.

    Thank you!
     
  18. Jonmundur

    Jonmundur New Member

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  19. Jonmundur

    Jonmundur New Member

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    Your Mercedes:
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    I have Mercedes E350e year 2017. Std front 245/45r18 front and 275/40r18 rear.

    Can I use 255/35 R19x8.5 front and back winter tyres and rims on this car?

    Appreciate your help, cant find any info about this!

    Jonni
     
  20. moj91

    moj91 Senior Member

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    i would advise against fitting a larger 19" rim for a winter wheel, you want as much sidewall as possible for poor weather running. I would find the smallest dia. rim you can which fits over your brakes - ideally look for a 2nd hand set from the same model/year so you don't have to worry about fitment issues.
     

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