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Thread: offset 255/50 R16 on 8.5 rim on E34

  1. #1
    Join Date
    Dec 2016
    Location
    Germany
    Posts
    32
    My Cars
    1991 E34 520i V8

    offset 255/50 R16 on 8.5 rim on E34

    Alright;
    I'd like to mount 255/50 R16 tires combined with 8,5" rims all around on a E34, I was wondering what offset the rims should have?

    Thanks

  2. #2
    Pelican Parts's Avatar
    Pelican Parts is offline Senior Member Supporting Vendor
    Join Date
    Aug 2013
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    Harbor City, CA
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    My Cars
    '02 E39 Touring
    Happy Holidays - check out this tech article from our website; it should give you all the info you need to know fitment and offsets. Best of luck!

    Wheel Fitment and Spacing Guide


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  3. #3
    Join Date
    Jun 2005
    Location
    New England
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    25,402
    My Cars
    F90 M5; E36 M3 Turbo
    Try the FI or drag forum. Some of us have run that size, but I have an E36 and have done it only on the E36 and dont lnow the E34 fitment issues.

  4. #4
    Join Date
    Dec 2016
    Location
    Germany
    Posts
    32
    My Cars
    1991 E34 520i V8
    First of all, thanks for the answers

    First, I followed the "fitment and spacing guide" and came to the conclusion that I'd need the offset to be between 5mm and 10mm to clear the front...
    Stock for the E34 would be around 15mm to 20mm; the E36 however has a offset-range from 32mm to 42mm if I remember correctly..

    I stumbled across this during my research:

    http://www.bimmerforums.com/forum/sh...-50-16-fitment

    The "E38 basket weave" rims have an offset of 23mm, combined with a 15mm spacer results in 8mm offset, which actually fits the "5-10-range" I had in mind...

    So 8,5" Rims with 255 tires should fit the E34 all around if the offset is between 5mm and 10mm , can someone confirm this?

    Thanks

  5. #5
    Join Date
    Jan 2017
    Location
    Finland
    Posts
    43
    My Cars
    E34 M5
    ET~13 is enought. Why 255/50?

  6. #6
    Join Date
    Dec 2016
    Location
    Germany
    Posts
    32
    My Cars
    1991 E34 520i V8
    Thanks

    The tire selection for the event I want to be taking part in is pretty limited; the other options would be way to narrow for the E34 under race conditions and the legal tire manufacturers don't offer anything allowed with a decent width and lower sidewall^^

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