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Thread: Stahlbus for GP4-RX

  1. #1
    Forum Moderator alex's Avatar
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    Stahlbus for GP4-RX

    Hi Mike,

    Do you know which Stahlbus would be needed for GP4-RX calipers?
    I have some fitted to the GEN3 OEM calipers but I believe they are the wrong thread/pitch, hoping I am wrong.

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    Forum Vendor RacesparesUk_Mike's Avatar
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    Re: Stahlbus for GP4-RX

    Hi Alex

    I will check on the thread pitch of the Gen 4 tomorrow and get back to you. Mike

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    Forum Vendor RacesparesUk_Mike's Avatar
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    Re: Stahlbus for GP4-RX

    Sorry having a brain fade moment. If they fit oem Gen 3 calipers then yes they will fit straight onto the GP4RX as both use 1mm fine thread. Mike

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    Forum Moderator alex's Avatar
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    Re: Stahlbus for GP4-RX

    Cheers!

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    Standard Member RyS1000RR's Avatar
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    Stahlbus for GP4-RX

    I used the same Stahlbus (HP branded) valves on both my Gen 3 OEM and Brembo GP4-RX calipers without issue.

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    2 YEAR PREMIER MEMBER bmwbadboy's Avatar
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    Re: Stahlbus for GP4-RX

    What size is that? M10 x 1mm pitch / 14 length?

  8. #7
    Standard Member RyS1000RR's Avatar
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    Stahlbus for GP4-RX

    Quote Originally Posted by bmwbadboy View Post
    What size is that? M10 x 1mm pitch / 14 length?
    When I bought mine I just ordered BMW Part # 77 02 8 543 065. You get two Stahlbus valves for the front brake calipers and one for the rear caliper in the pack.

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  10. #8
    Standard Member RyS1000RR's Avatar
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    Stahlbus for GP4-RX

    BMW Part # 77 02 8 543 065


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  12. #9
    1 YEAR PREMIER MEMBER LOCKE's Avatar
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    Re: Stahlbus for GP4-RX

    Quote Originally Posted by RyS1000RR View Post
    When I bought mine I just ordered BMW Part # 77 02 8 543 065. You get two Stahlbus valves for the front brake calipers and one for the rear caliper in the pack.
    I was under the impression the smaller one was for the master cylinder?
    GBRacing Motul K&N Gilles Akrapovic Samco Pirelli Brembo MRA Evotech Renthal DID

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    LIFETIME FORUM MEMBER stuartb's Avatar
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    Re: Stahlbus for GP4-RX

    I've never used Stahlbus Nipples, considered buying a pair when I overhauled my Calipers last winter, are they worth the money ?

    Sent from my SM-G975F using Tapatalk

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