Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #11
    Join Date
    Nov 2014
    Location
    Portland, OR
    Posts
    10,242
    Quote Originally Posted by ZHPizza View Post
    They're definitely close, but not the same diameter. I don't know much about how sensitive LSDs are with different diameters, but I know you can really jack up the transfer case on an AWD just by mixing new tires with worn.
    Yeah, I know diffs can be sensitive to different tire sizes. I could have sworn diameters were exactly the same front to back when I was considering replacing my rock hard awful tires on my 135s


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  2. #12
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    3,130
    Quote Originally Posted by BMWCurves View Post
    Yeah, I know diffs can be sensitive to different tire sizes. I could have sworn diameters were exactly the same front to back when I was considering replacing my rock hard awful tires on my 135s


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    637mm for the fronts and 635mm for the rears so yeah pretty daggum close don't cha know

  3. #13
    Join Date
    Apr 2018
    Location
    Eastern WA
    Posts
    30
    Quote Originally Posted by ZHPizza View Post
    637mm for the fronts and 635mm for the rears so yeah pretty daggum close don't cha know
    Which brings ups the question of what the diameter of the space saver is.

    Regardless, I want to have a full size spare for the reasons I mentioned earlier. I took out the donut this morning and put in a style 73 17" wheel, which has the same diameter as the stock ZHP fronts.

    So, the real question at this point is whether a stock 225 front tire will fit into the spare tire well, and is not too much of a pain to get in and (especially) out...

    Anyone running that?

    05 ZHP Sedan, auto, Orientblau, natural brown

  4. #14
    Join Date
    Oct 2016
    Location
    Vermont
    Posts
    588
    Go to a square set-up with 17" wheels... simple.

  5. #15
    Join Date
    Apr 2016
    Location
    Katonah, NY
    Posts
    771
    This is my new full size spare. 18 x 8.5 and 235 tires. Fits fine. Any wider and and the trunk floor won't close properly. Before doing anything i tested my 135 which had 255s and it still worked fine. ZHP will be my daily when we move into our house in a month and i wanted to make it as practical as possible. Hope this helps.

    Quote Originally Posted by joeybananaz18 View Post

    The wheels are 18 x 8.5 all around. Tires are PSS 235/40/18. I mentioned in an earlier post that I had picked up 5 wheels. There was a good reason I did that.....



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  6. #16
    Join Date
    Apr 2018
    Location
    Eastern WA
    Posts
    30
    Quote Originally Posted by joeybananaz18 View Post
    This is my new full size spare. 18 x 8.5 and 235 tires. Fits fine. Any wider and and the trunk floor won't close properly. Before doing anything i tested my 135 which had 255s and it still worked fine. ZHP will be my daily when we move into our house in a month and i wanted to make it as practical as possible. Hope this helps.
    Perfect. That tells me what I’m looking for.

    05 ZHP Sedan, auto, Orientblau, natural brown

  7. #17
    Join Date
    Jan 2019
    Location
    Ft. Lauderdale, FL
    Posts
    227
    Sorry for bumping this older thread, but had a question.

    So we're fairly confident a stock style 135 front wheel with tire would fit in there. I read on E46fanatics that you have to flip the trunk floor to get it to fit? Is this the case?

    Does anyone know if the wheel will go in there inverted so you can store stuff inside the rim?

    Asking because I have a well-curbed FR wheel that I would replace with a better one if I could find one and throw this beat up one in as the spare.
    '04 330i ZHP sedan | Mystic blue | Alcantara | 6MT | 111k
    '98 740il | Schwartz 2 | Sandbeige | 5AT | 238k | lowered on Bilsteins w/ B&G springs
    '00 540i sport | Titanium silver | Black | 5AT | 120k
    '85 Mustang GT convertible | Medium charcoal metallic | Gray | 5MT | 215k | one owner, all original

  8. #18
    Pretty sure it fits... might also depend on your tire choice.

    Sent from my Pixel 2 XL using Tapatalk
    -Corey

    2003 Blue ZHP Sedan @ 210k
    Dead due to damaged valve. Parts are being transferred to a wagon:

    2003 325iT Japanrot 6MT @ 230k

  9. #19
    Join Date
    Jan 2019
    Location
    Ft. Lauderdale, FL
    Posts
    227
    TIRERACK.com - Revolutionizing Tire Buying
    Can you invert it to store emergency supplies inside the rim?
    '04 330i ZHP sedan | Mystic blue | Alcantara | 6MT | 111k
    '98 740il | Schwartz 2 | Sandbeige | 5AT | 238k | lowered on Bilsteins w/ B&G springs
    '00 540i sport | Titanium silver | Black | 5AT | 120k
    '85 Mustang GT convertible | Medium charcoal metallic | Gray | 5MT | 215k | one owner, all original

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