Does anyone have a (unmounted) 575 front Modular wheel sitting around? | FerrariChat
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Does anyone have a (unmounted) 575 front Modular wheel sitting around?

Discussion in '456/550/575' started by Auraraptor, Jan 5, 2024.

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  1. Auraraptor

    Auraraptor F1 World Champ
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    Sep 25, 2002
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    #1 Auraraptor, Jan 5, 2024
    The revised modular front wheels have have both PN 188475 and 210660 beveled on the inner spoke.

    If someone has the 188475-210660 wheel sitting around/unmounted, would it be possible to measure the inner diameter along the expanded ridge on the inner barrel? It was added made to clear the HGTC brakes. I am trying to figure out their clearance but I dont have 188475-210660 to check (and the pair I was buying sold before I could get to them).

    I am happy to forward a paypal/zelle for your help!

    The inner ridge:
    [​IMG]
     
  2. BRIOSO

    BRIOSO Karting
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    Dec 24, 2007
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    #2 BRIOSO, Jan 6, 2024
    I measure 17 3/8” level with the hub face.
    Hope that helps!
     
  3. Auraraptor

    Auraraptor F1 World Champ
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    #3 Auraraptor, Jan 6, 2024
    Your amazing !
    I’m going to pull and measure my Hamanns and see what they are.
     
  4. BRIOSO

    BRIOSO Karting
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    Dec 24, 2007
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    #4 BRIOSO, Jan 6, 2024
    Well, I hate to say it, but I am wrong!!
    I bought what I thought was an HGTC 4-5 years ago from an unscrupulous Ebay Seller in the U.K. who totally misrepresented the condition of the wheel.
    I ended up owning it for free, but when I was just comparing it to the other 2 non HGTC wheels I have in boxes, they are all the same. So not only did the seller misrepresent the condition of the wheel, he swapped out the original HGTC Barrel for a Non HGTC Barrel and mated it an HGTC center. Unbelievable.
    Egg on my Face. Awfully sorry.
    Seems like Taz or someone posted those dimensions on F-Chat a while back.
     
  5. mathewr

    mathewr F1 Rookie
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    #5 mathewr, Jan 6, 2024
    I will have an HGTC front in next week and will check.
     
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  6. Auraraptor

    Auraraptor F1 World Champ
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    #6 Auraraptor, Jan 6, 2024
    I am so sorry to hear that! Extremely frustrating.
    You rock !! I *really* want to keep my Hamann wheels if I can.
     
  7. Auraraptor

    Auraraptor F1 World Champ
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    #7 Auraraptor, Jan 13, 2024
    Please let me know what you find.

    I tried to work backwards to figure out what the inner clearance requirement may be. The
    Brembo GT kit in 380mm: 442mm clearance required, GT kit in 405mm: 462mm clearance required. That puts an estimate for 395mm at 450-455mm? I am not sure how similar the GT “N” caliper is to the carbon calipers though, as I have not held either.

    Modular (188475): 17 3/8” (~440mm) - I confirmed with my 575 take-offs.
    HGTC Modular: ??
    Hamann: ??
     
  8. mathewr

    mathewr F1 Rookie
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    #8 mathewr, Jan 15, 2024
    Just over 17 3/4 inches. I used a tape measure, center hub straight across. This is for the Hamman front.
     
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  9. Auraraptor

    Auraraptor F1 World Champ
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    #9 Auraraptor, May 8, 2024
    Turns out Hamann wheels WILL clear HGTC wheels!
     

    Attached Files:

  10. tazandjan

    tazandjan Three Time F1 World Champ
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    #10 tazandjan, May 8, 2024
    I thought they would. My Mov'It brakes cleared the 19" NF2s and they are bigger than the HGTC Brembos. Not by much, but they cleared.



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