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Thread: Wiring rear brake light with AP rearsets

  1. #1
    Superbike Twin Leepants's Avatar
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    Wiring rear brake light with AP rearsets

    I did search - found nothing and I know that a few on here have done this...

    The original rear brake switch is an "always on unless pressed" one, and with the relocation of the master cylinder etc, the AP kit comes with a pressure switch that fits on the mastercylinder. Done, no probs. However, the 2 wires that come from the pressure switch are both black, sooooo, does it matter which wire goes to which when I connect it to the existing switch loom?
    I assume one wire is "live" and one "earth", so I would therefore conclude that if I wire it wrongly, then the circuit will be reversed, ie, pressure = brake light off, and no pressure = light on.

    Any advice welcome, please. Thanks guys.

  2. #2
    AMA Pit Boss redratbike's Avatar
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    just a question of elimination..try them one way then the other ..just make temp. connections to test

  3. #3
    Superbike Twin Leepants's Avatar
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    Well, either I was REAL lucky, or it doesn't matter. For what its worth, the 2 that are connected to the OEM switch are the same colour as well, ergo I assume it sodesn't matter how they are wired up.

    Pics going up imminently

    And TVM RRB

  4. #4
    Evil Twin mad biff's Avatar
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    well guys i aint sure the make of my rear sets but my pressure switch is on my rear brake caliper not the master cylinder 2 wires the same colour and guess what yipp its fucked lol ie: wont work joined the 2 wires together lights up no problem BUT and its BIG BUT how the hell do i get a new
    pressure switch for it ? as its not a standard part for that bike any ideas

  5. #5
    Superbike Twin Leepants's Avatar
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    Give Aprilia Performance a shout, mate IF its the OEM master cylinder, the switch that is with the kit fits, and I daresay they'll do spares

  6. #6
    AMA Pit Boss redratbike's Avatar
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    just buy a pressure switch for a single brakeline they are a common bit

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