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Thread: Brembo RCS 19 master cylinder

  1. #1
    2 YEAR PREMIER MEMBER Wilko's Avatar
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    Brembo RCS 19 master cylinder

    Has anyone fitted one to a Gen4? Is there anything I need to be made aware of first?

  2. #2
    1 YEAR PREMIER MEMBER bmwbadboy's Avatar
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    Re: Brembo RCS 19 master cylinder

    Quote Originally Posted by Wilko View Post
    Has anyone fitted one to a Gen4? Is there anything I need to be made aware of first?
    Yes and no. Plug and play

  3. #3
    Standard Member RyS1000RR's Avatar
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    Brembo RCS 19 Master Cylinder

    Yes; I have one fitted on my Gen 4. If you don’t want to spend a small fortune on a Brembo reservoir kit, and want to reuse the OEM one, you will need to buy some 6mm tubing to make it fit.

    https://fortisracing.co.uk/products/...7807f8a0&_ss=r

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    1 YEAR PREMIER MEMBER bmwbadboy's Avatar
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    Re: Brembo RCS 19 master cylinder

    Oh yeah, forgot about that bit.

    Need to cut 1cm or so of 6mm tube and insert it into OE tube to make a tight fit on RCS side

  5. #5
    2 YEAR PREMIER MEMBER Wilko's Avatar
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    Re: Brembo RCS 19 master cylinder

    What about the brake switch? I have read somewhere that the switch runs normally closed as opposed to normally open?

  6. #6
    Standard Member RyS1000RR's Avatar
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    Brembo RCS 19 Master Cylinder

    There is no need to use the supplied Brembo brake light switch which comes in the box or do anything else. Just fit the RCS master cylinder (noting the requirement for the 6mm hose if using the OEM reservoir) and that’s it.

  7. #7
    2 YEAR PREMIER MEMBER Wilko's Avatar
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    Re: Brembo RCS 19 Master Cylinder

    So you use the bmw switch then? That sounds good to me

  8. #8
    Standard Member RyS1000RR's Avatar
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    Brembo RCS 19 Master Cylinder

    Just swap the master cylinders over and touch nothing else in the process.

  9. #9
    1 YEAR PREMIER MEMBER bmwbadboy's Avatar
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    Re: Brembo RCS 19 Master Cylinder

    Quote Originally Posted by Wilko View Post
    So you use the bmw switch then? That sounds good to me
    there is no switch on bmw, ecu uses pressure reading from abs if I'm not mistaken
    Last edited by bmwbadboy; 7th April 2021 at 07:42 PM.

  10. #10
    2 YEAR PREMIER MEMBER Wilko's Avatar
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    Re: Brembo RCS 19 Master Cylinder

    So there’s no brake light switch??

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