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  1. #1
    g60leigh's Avatar
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    235-35-19 to 225-40-19

    I have been trrying to get some replacement tyres in 235-35-19 but they are like hen's teeth to get at a decent price, guy at the tyre place said try 225's as they will fit no problem and are cheaper, I have sourced a set of 225-40's at a nice price but am wondering if anyone can think of a reason there will be a problem? cheers

    2001 S3 (AMK)
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  3. #2
    stapo69's Avatar
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    If your 19s are like mine, fitting them in the arches is a bit tight. With a 225/40 you will be losing a little in the width, but gaining in height cos of the bigger profile. Why not a 225/35? A little bit skinnier, but the same profile, also seem a bit more of a common size, in case you pop one and need to replace.

    Have a look on here, dozens of tyres at pretty good prices: http://www.mytyres.co.uk/start.html

    Can get a decent deal from the shops on ebay too.
    Last edited by stapo69; 5th August 2008 at 20:48.
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  4. #3
    g60leigh's Avatar
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    I have a set of MICHELIN PILOT SPORT 2 225/40's for 120 so going to give them a go
    wonder if the stretch will ofset the height?

    2001 S3 (AMK)
    AEM WMI Kit, Black Silicone Hoses, Badger5 TIP with Cone Filter, AH Fabrications FMIC, Relentless Manifold Downpipe & Sport Cat, Miltek Cat Back Exhaust, VAG Aero Wipers, Forge FMDV008 Re-Circ, Revo Stage 2 Remap with SPS+ Tweaks, 2.0 TFSI Coil Pack Mod, B&M Short Shift, RNS-D Retrofit, Brembo & B5 2 Piece Rotor Conversion

  5. #4
    jcb
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    why would you lose width? they are both 225mm wide.
    the 35 and 40 profile is not a measurement its a percentage of the width.
    35% of 235 = 82.25mm wall height
    40% of 225 = 94 mm wall height

    that is close to 12mm top and bottom on the wheel height, do you have 12mm's worth of space between the current tyre and bearing carrier upright? I know I don't.
    probably explains why they are less common or not popular.
    Last edited by jcb; 5th August 2008 at 21:30.

  6. #5
    jcb
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    try this for seeing what it will do to your speedo also

    http://www.miata.net/garage/tirecalc.html

  7. #6
    Oranoco's Avatar
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    Just done a quick search and am now glad I opted for 18's. 172 a piece for Toyos

    Life begins at 140mph
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  8. #7
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    Yes your gearing will be well screwed deviating from the stock rolling radius by that much. That's 5% and the maximum recommended is 2.5. Even your old tyres were only just inside the 2.5%.
    "How to tear apart the ties that bind, perhaps fcuk off might be too kind"
    Alex Turner

  9. #8
    jcb
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    slows you down too!

 

 

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