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Thread: lowered on 18s???

  
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    SRiBEN's Avatar
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    lowered on 18s???

    just got my 18s fitted today and next plan is to drop it a little..
    but how much?
    can only afford springs at the mo so would 40mm be ok with the 18s on?
    anyone know how low you can go with these size wheels?
    tyre size 215/35/18
    thanks

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    depends on wheel width and offset mate, mines dropped 70mm 8x18 et40.

    BMW 535d Msport / Meriva VXR

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    have you had your arches rolled astra_sport? my vans on 18s and even on standard springs it gets the odd rub, your tyres are a little narrower though Ben as mine are 225/40/18, I think your alright with 215s

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    Yeah my rears were trimmed for maximum clearance just incase, fronts are standard.
    BMW 535d Msport / Meriva VXR

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    do you not get any rubbing at all then, not even the front around corners?

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    A little on the front passenger corner, but nothing too major.
    BMW 535d Msport / Meriva VXR

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    do you have 215s aswell?

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    yep 215-35-18 falken 452's
    BMW 535d Msport / Meriva VXR

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    215 is the width of the tyre the profile is the second number normally around 40
    Fishing is like sex, you never know what you'll catch

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    Quote Originally Posted by mikegater47 View Post
    215 is the width of the tyre the profile is the second number normally around 40


    erm... thats correct but dont recall it being asked

    as already pointed out though, let us know the offset and width of the wheel (wheel NOT tyre) and we can advise the safe limits for dropping

    If u dont know off hand, then check the inside of the rim itself. The width should be stamped with a J next to it and the offset may have the letters ET so for example....

    7.5J ET40 would indicate the rim is 7.5" wide and the offset is 40mm

    Basic rules that apply for 18s on an Astra G would be:

    7" or 7.5" wide rim.... offset of 38mm - 49mm then lower it by anything upto 70-80m without needing any mods

    8" wide rim then an offset of 42-49mm would enable u to achieve the same drop

    If however the offset of your rims is less then the amount u can lower it by will be reduced.

    For instace 8" wide rim with an ET of 35mm may mean u can only lower it about 30mm without causing problems

    Having said that though, the problems arent that great. More often than not u just need to trim the arch liners and the rear bumper bracket - worse case scenario would be arch rolling but this isnt really that expensive so not the end of the world

    Hope this helps and has cleared up any confusion.

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