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Mounting the 458 Wheel

Discussion in '458 Italia/488/F8' started by Italia2012, Jun 16, 2018.

  1. Italia2012

    Italia2012 Rookie

    Mar 12, 2017
    4
    Seekonk Massachusetts
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    Dave
    The 458 has a stud protruding from the hub/rotor. See photo. It appears to be an alignment pin, but the rim doesn't have a single corresponding hole. It is in the opposite position to be a counter weight for the valve stem/pressure sensor. It appears to serve no purpose.[​IMG]

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  3. Dave rocks

    Dave rocks F1 World Champ
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    Nov 23, 2012
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    Dave Lelonek
    It holds the rotor to the hub.
     
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  4. Italia2012

    Italia2012 Rookie

    Mar 12, 2017
    4
    Seekonk Massachusetts
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    Dave
    There two bolts that hold on the rotor. One bolt has a conventional hex head. The other bolt has this protruding pin. Ferrari could have used two hex head bolts but they choose to make one bolt with an alignment pin ?

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  5. Melvok

    Melvok F1 World Champ
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    Whats your Q or point ?
     
  6. 338Lapua

    338Lapua Formula Junior

    Sep 5, 2015
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    Michigan
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    Tony
    To be technically correct, Brembo is the one who designed the brake system. I would venture to guess that there is a specific reason Brembo did this. Could be used during production of the rotor assembly that has nothing to do with the system when it is assembled to the car.
     
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  8. RayJohns

    RayJohns F1 Veteran
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    May 21, 2006
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    I'm guessing you are correct there. Perhaps it's to allow spinning the assembly during balancing?

    Ray
     
  9. 338Lapua

    338Lapua Formula Junior

    Sep 5, 2015
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    Michigan
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    Tony
    It very well could be although I suspect it is for something else. Again, just a guess.
     
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  10. Ghostdiver

    Ghostdiver Formula Junior

    Mar 18, 2005
    982
    Southeast Texas
    Full Name:
    Wally Hollar
    It's not just 458s....360's have them too. I don't believe it has anything to do with balance since when I put the centerlock adapters on, both the hex head and "locating" pin have to be removed

    It's officially called a brake disc fixing screw at a whopping .44 cents, right next to a screw that costs .16 cents....
     

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